Numerical Questions and answers on Motion for Class 9 physics a. What is the distance travelled by the SUV is first 2 seconds? b. What is the braking force at the end of 5 seconds to bring the SUV to a stop within one seconds? -Science
a. The distance travelled by the SUV is first 2 seconds = Area of ΔABEΔABE =12×AE×BE=12×AE×BE =12×2×15=15m=12×2×15=15m b. Acceleration will be given by the slope of the line CD a=0−156−5=−15m/s2a=0−156−5=−15m/s2 Now mass of the SUV =1000 Kg Braking Force will be F=ma=1000×−15=−15000NF=ma=1000×−15=−15000N