If you drop a bouncing ball from a height of 40 cm, explain why it can only bounce back up to a height of less than 40 cm.

Due to energy loss while collision ball will not reach to same height while if there is no energy loss then in that case ball will reach to same height

Explanation:

Explanation:

As we know that initially ball is held at height h = 40 cm

So here we can say that kinetic energy of the ball is zero and potential energy is given as

U = mgHU=mgH

now when strike with the ground then its its fraction of kinetic energy is lost in form of other energies

So the ball will left rebound with smaller

grav forces affect all objects magnetic forces affect magnetic objects and electric currents

+15-35=-20

going in opposite directions