A stone weighing 10 Newtons is sitting on the side of a hill that is at a 30o angle with the horizontal. What is the magnitude of the component of the stone's weight parallel to the side of the hill.

A stone weighing 10 Newtons is sitting on the side of a hill that is at a 30o angle with the horizontal. What is the magnitude of the component of the stone's weight parallel to the side of the hill. 
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1 Answer

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ANSWER: 5 NEWTONS
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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?

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