A small ball is set in horizontal motion by rolling it with a speed of 5.00 m/s across a room 10.0 m long, between two walls. Assume that the collisions made with each wall are perfectly elastic and that the motion is perpendicular to the two walls.
(a) Select the reason why the motion is periodic.
The motion is periodic because it is repetitive and no energy is lost.The motion is periodic because the ball follows a "Hooke's Law" force as it moves from side to side. The motion is periodic because the projection of the ball on the floor follows a sine-wave.
(a) Determine its period.
s
(b) Is this motion simple harmonic?
yes/no