Description : If Skyler throws the football 50 m in three seconds what is the average speed of the football?
Last Answer : 16.7 meters/sec
Description : A girl throws a 0.1 kilogram ball at a wall. The ball hits the wall perpendicularly with a velocity of 5 meters per second and then bounces straight back with a velocity of 4 meters per second. The ... .4 kilogram-meters per second y) 0.5 kilogram-meters per second z) 0.9 kilogram-meters per second
Last Answer : ANSWER: Z -- 0.9 KILOGRAM-METERS PER SECOND
Description : A boy throws a ball vertically upward with a velocity of 6 meters per second. How long does it take the ball to return to the boy's hand?
Last Answer : ANSWER: 1.22 SECONDS (accept: 1.2 seconds)
Description : A boy is standing on an elevator which is traveling downward with a constant velocity of 30 meters per second. The boy throws a ball vertically upward with a velocity of 10 meters per second ... the ball, MAGNITUDE AND DIRECTION, relative to the elevator shaft the instant the boy releases the ball?
Last Answer : ANSWER: 20 METERS PER SECOND DOWN
Description : At time t=0, a body has a velocity of 5 meters per second, EASTWARD; at time t=2 seconds, its velocity is 7 meters per second WESTWARD. What is the MAGNITUDE of the body's average acceleration?
Last Answer : ANSWER: 6 METERS PER SECOND SQUARED
Description : A two-stage rocket attains a velocity of 3,000 meters per second when it drops the first stage and ignites the second. It consumes 1 kilogram of fuel per second and its exhaust speed is 2,000 meters per second. ... ? w) 2,000 Newtons x) 3,000 Newtons y) 2,000 Newton-seconds z) 3,000 Newton-seconds
Last Answer : ANSWER: W -- 2,000 NEWTONS
Description : A car traveling at a constant velocity of 20 meters per second passes a second car which is initially at rest. The car which was at rest starts accelerating at 10 meters per second squared the instant it is passed ... car. They will meet again in: w) 2 seconds x) 4 seconds y) 6 seconds z) 8 seconds
Last Answer : ANSWER: X -- 4 SECONDS
Description : A ball is thrown upwards with an initial velocity of 5 meters per second. How many seconds will it take to reach maximum height? w) 0.5 seconds x) 1 second y) 1.5 seconds z) 2 seconds
Last Answer : ANSWER: W -- 0.5 SECONDS
Description : What is the initial velocity of an object if it is moving 10 meters per second after 2 seconds with a constant acceleration of 4 meters per second squared?
Last Answer : ANSWER: 2 METERS PER SECOND
Description : The time needed for a net force of 10 newtons to change the velocity of a 5 kilograms mass by 3 meters/second is: w) 1.5 seconds x) 6 seconds y) 16.7 seconds z) 150 seconds
Last Answer : ANSWER: W -- 1.5 SECONDS
Description : A 40 kilogram girl climbs a vertical distance of 5 meters in twenty seconds at a constant velocity. How much work has the girl done?
Last Answer : ANSWER: 2000 JOULES or 1960 JOULES
Description : A man throws a ball to maximum horizontal distance of 80 meters. Calculate the maximum height reached.
Last Answer : A man throws a ball to maximum horizontal distance of 80 meters. Calculate the maximum height reached.
Description : A girl throws a 2 kilogram rock vertically upward. It reaches a maximum height of 5 meters. What is the kinetic energy of the rock the instant it leaves the girl's hand?
Last Answer : ANSWER: 100 JOULES (accept 98 joules)
Description : In a construction site, a crane lifts 1000 kg of concrete mix to roof top at a height of 20 meters in 50 seconds. If the value of gravity 'g' due to earth is 10 m s-2, the power of elevator will be. -Physics
Last Answer : 4 KW (kilowatt)
Description : If a sled has a constant acceleration of 2 meters per second squared and starts from rest, the distance in meters that it will have covered after 5 seconds is: w) 10 meters x) 20 meters y) 25 meters z) 50 meters
Last Answer : ANSWER: Y -- 25 METERS
Description : A 10,000-watt motor operates an elevator weighing 5000 newtons. Assuming no frictional losses, how high is the elevator raised in 10 seconds. Is it raised: w) 2 meters x) 20 meters y) 50 meters z) 100 meters
Last Answer : ANSWER: X -- 20 METERS
Description : Which has a greater speed, a heron that travels 60 meters in 60 seconds or a duck that travels 60 meters in 5 seconds. Explain?
Last Answer : The heron is traveling 1 meter per second. The duck is traveling 12 meters per second. The duck is traveling faster.
Description : what is the speed of a jet airplane that travels 3,000 meters in 10 seconds?
Last Answer : welp
Description : how,he speed of sound is about 3.4 × 102 meters per second. Mark is performing a science experiment and he needs to know how far sound travels in 3 × 1010 seconds. If Mark uses a calculator to solve this problem, how will the calculator show the answer?
Last Answer : 10200000000000
Description : What is the speed of a rocket that travels 900 meters in 12.12 seconds?
Last Answer : What is the answer ?
Description : How do you answer this question what is the speed of sailboat that is traveling 150 meters in 120 seconds?
Description : A giraffe can one 525 m in 75 seconds and everything can one 260 m in 65 seconds find the speed of the elephant in meters per second.?
Last Answer : 48 we
Description : Two trains are running in opposite direction with the same speed. If the length of each train is 135 meters and they cross each other in 18 seconds, the speed of each train is a) 29km/hr b) 35km/hr c) 27km/hr d) 28km/hr
Last Answer : c) 27km/hr
Description : A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train? a) 120 meters b) 180 meters c) 324 meters d) 150 meters
Last Answer : d) 150 meters
Description : A car is moving along a straight horizontal road at a speed of 20 meters per second. The brakes are applied and a constant force of 5000 Newtons decelerates the car to a stop in 10 seconds. The mass of the car is: w) 1250 kilograms x) 2500 kilograms y) 5000 kilograms z) 10,000 kilograms
Last Answer : ANSWER: X -- 2500 KILOGRAMS
Description : A shatabadi express takes 240 seconds to cover a distance of length 700 meters at a speed of 270 km/hr. What will be the time taken by the train to cross a standing pole? A) 160sec B) 465sec C) 310sec D) 231sec
Last Answer : ANSWER:D Explanation: Speed of the train = 270 km/hr. Converting the speed into m/sec Speed = 270 km/hr = 270 x 5/18 m/sec = 75 m/sec First, we have to find the length of the train Let ... a standing Pole at 75 m/s =( 17300/75)seconds = 231 seconds. Hence the answer is 231 sec(approx.)
Description : Length of train is 510 meters and speed of train is 63 km/hour. This train can pass a pole in 90 seconds, then find the length of the pole? A) 575mts B) 2500mts C) 1065mts D) 876mts
Last Answer : ANSWER: C Explanation: Given speed of the train = 63 km/hr = 63*5/18 m/s =17.5m/s Let the length of the pole = x mts Given time taken to cover the distance of (510+ x)mts is 90 sec. We know speed = ... m/s 17. 5 = 510+x/90 1575 = 510+x x = 1065 Therefore the length of the pole is 1065 mts
Description : A boy sitting in a rail road car throws a ball straight up into the air. The ball will fall back into his hands when the rail road car is a.moving at constant velocity b.accelerating ... inclined plane, while another identical block B is released for free fall from the same height e.decelerating
Last Answer : a. moving at constant velocity
Description : A man lifts a stone weighting 300 g from the ground to a height of 2m and throws it horizontally with a velocity of 6 m/sec. The work done by the man is a.7.686 J b.11.286 J c.5.886 J d.8.343 J e.Tapered bearing
Last Answer : b. 11.286 J
Description : Bob throws a rock striaght up at a velocity of 88 ft./s. What is the maxium height that the rock reaches?
Last Answer : See here on how to calculate this > http://www.ehow.com/how_8115675_calculate-height-velocity.html
Description : If a boy sitting in a train, which is moving at a constant velocity, throws a ball straight up into the air, the ball will – (1) Fall in front of him (2) Fall behind him (3) Fall into his hand (4) None of the above
Last Answer : (3) Fall into his hand Explanation: If a person throws a ball vertically upwards in a moving train, it comes hack to his hand. The moment the ball was thrown, the ball was also in motion alone with ... ball move ahead by the same distance. This makes the ball to come back to his hand on its return.
Description : If a boy sitting in a train, which is moving at a constant velocity, throws a ball straight up into the air, the ball will (1) fall in front of him (2) fall behind him (3) fall into his hand (4) None of the above
Last Answer : fall into his hand
Description : A flywheel starting from rest and accelerating uniformly performs 25 revolutions in 5 sec. Its angular velocity in rpm after 10 seconds would be a.50 rpm b.20 rpm c.25 rpm d.60 rpm e.45 rpm
Last Answer : b. 20 rpm
Description : If a car travels 6 inches on an Airtrack in .195 seconds what is its average velocity?
Last Answer : Feel Free to Answer
Description : An 8 kilogram mass resting on a frictionless horizontal surface is attached to a spring with a force constant of 50 Newtons per meter. If the velocity of the mass through the equilibrium position is 5 meters per second, what is the mass's maximum displacement from equilibrium?
Last Answer : ANSWER: 2 METERS
Description : An impulse of 10 kilogram-meter per second acting on an object whose mass is 5 kilogram will cause a change in the objects velocity of: w) 0.5 meters per second x) 2 meters per second y) 10 meters per second z) 50 meters per second
Last Answer : ANSWER: X -- 2 METERS PER SECOND
Description : A 10 kilogram mass rests on a horizontal frictionless surface. A horizontal force of 5 Newtons is applied to the mass. After the force has been applied for 1 second, the velocity of the mass is: w) 0 meters per second x) 0.5 meters per second y) 5 meters per second z) 50 meters per second
Last Answer : ANSWER: X -- 0.5 METERS PER SECOND
Description : The frequency of a wave is 50 Hertz and its wavelength is 25 meters. What is the velocity of this wave?
Last Answer : ANSWER: 1250 METERS/SECOND
Description : Shaquille O’ Neal is a 60% career free throw shooter, meaning that he successfully makes 60 free throws out of 100 attempts on average. What is the probability that he will successfully make exactly 6 free throws in 10 attempts? (A) 0.2508 (B) 0.2816 (C) 0.2934 (D) 0.6000
Last Answer : Correct option is (A).
Description : A speed boat moving at a velocity of 25 m/s runs out of gas and drifts to a stop 3 minutes later 100 meters away. What is its rate of deceleration?
Last Answer : 0.14 m/s²
Description : A helicopter is ascending vertically with a constant speed of 6 meters per second relative to the ground. At the instant the helicopter is 60 meters above the ground it releases a package. What is ... of the package, relative to the ground, the instant the package is released by the helicopter?
Last Answer : ANSWER: 6 METERS/SECOND UP
Description : A man is standing ner the edge of a uniformly rotating platform about an axis passing through its centre. The speed of rotation of the platorm will decrease if he a.extends his arms outwards b.107 ... towards the axis of rotation d.jumps out from that platform e.take out his coat and throws away
Last Answer : a. extends his arms outwards
Description : A man standing on a edge of a cliff throws a stone vertically upwards with a certain speed. He then throws another stone downwards with the same speed. Find the ratio of the speeds of the two stones when they hit the ground ... : 1 (2) 1 : 2 (3) 1 : 4 (4) Cannot be found from the given information.
Last Answer : (1) 1 : 1 Explanation: The stone which is throws upward will have the same velocity of u at the point of its original position when it is falling down. Another stone is thrown downwards with u. So ... will hit the ground with same velocity. So the ratio between the speeds of two stones will be 1:1
Description : A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. (1) The ball falls – (2) Behind him (3) In front of him (4) Into his hand
Last Answer : (1) Behind him Explanation: The moment ball is thrown, it is moving with the velocity of the car. According to the inertia of motion it will continue to move in the same direction with the same ... is not possible to neglect the resistance caused by air friction. So, the ball will fall behind him.
Last Answer : 1 : 1
Description : A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. The ball falls (1) behind him (2) in front of him (3) into his hand (4) by his side
Last Answer : behind him
Description : Consider a uniprocessor system where new processes arrive at an average of five processes per minute and each process needs an average of 6 seconds of service time. What will be the CPU utilization ? (A) 80 % (B) 50 % (C) 60 % (D) 30 %
Last Answer : (B) 50 %
Description : How far will a free falling object cover 3 seconds if it travels a distance of 6 seconds 72 meters ?
Last Answer : h = ut + 0.5 * g * t ^ 2 => h = 0 + 0.5 * 9.8 * 3 ^ 2 => h = 44.1 m. 44.1 meters.
Description : What is the converted 51.1 seconds for 440 yards converted to 400 meters?
Last Answer : It works out at 50.8 seconds for 400 metres.