A10 kg body is forced against a horizontal elastic spring compressing it an amount of 0.5 m. when the
body was released, it moves on a horizontal surface a distance of 3 m before coming to rest. the force
constant of the spring is 500 n/m. what is the coefficient of friction between the block and the surface.

An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?