Question

 If the stone is thrown up vertically and return to ground ,its potential energy is maximum *

2 points

(a) at the bottom

(b) at the maximum height

(c) during the upward journey

(d) during the return journey​

Answer 1

We know the sum of kinetic and potential energy is constant at every point in its displacement.

When the Ball reaches the maximum height,

• The velocity of the ball becomes zero(0).Hence the kinetic energy becomes zero.
• Since the kinetic energy is zero, Therefore the potential energy will be maximum.

Hence the potential energy of the ball will be maximum when it reaches its maximum vertical height.

Ans(b)