Question

When a ball thrown upwards reaches its highest point, tick which of the following statement(s) are correct?

विकल्प

• The force acting on the ball is zero.

• The acceleration of the ball is zero.

• Its kinetic energy is zero.

• Its potential energy is maximum.

Answer 1

Its kinetic energy is zero.

Its potential energy is maximum.

Explanation:

The ball's kinetic energy is 0 at its highest point since its velocity is zero. The ball's potential energy is at its highest point because it is at its highest point.

Even at the highest point, the ball is still subject to the force of gravity (mg), hence the force is not zero. Also, the acceleration is not zero; rather, it is still equal to g, the downward acceleration caused by gravity.