Any object, except antimatter, :)
Wound it be one that dissolves ?
A piece of blue paper appears blue because the paper absorbs all colors of light except blue. <em> (b)</em>
So any light that bounces off of the paper and enters your eye must be blue light !
The effective acceleration or deceleration due to gravity depends on the inclined angle of the track relative to ground; the steeper the slope is the greater the effective acceleration.
Answer:
No, some energy will be dissipated energy due to work of air resistance.
