Question

A compressed spring is held near a small toy car of mass 0.15 Kg . On the release of the spring , the toy car moves forward with a velocity 10 m/s. Find the PE of the spring.

Answer 1

@Yahoo!

Answer 2

Hint : here the Potential Energy of spring = to Kinetic Energy car

P.E = K.E........ so.... use K.E = 1/2 * m * v^2

Answer 3

okay :)