Question

if the stone is thrown up vertically and return to ground , it's potential energy is maximum​

Answer 1

Answer:

The potential energy of an object depends on two factors. That is:

• Mass of the object
• Height from the ground

Potential energy of an object of mass 'm' at a height 'h' is given as:

→ Potential Energy = m × g × h

According to the question, the stone is thrown vertically upwards and returns to ground after some time. Let's calculate Potential Energy at:

• i) Lowest Point
• ii) Topmost Point

At the Lowest Point, the height of the stone would be close to zero. Hence the potential energy of the stone at the lowest point will be approximately zero.

At the Topmost Point, the height of the stone would be 'h' which is greater in value  than the lowest point. Hence the potential energy of the stone at topmost point would have some fixed numerical value greater than zero.

Hence the potential energy of the stone at the Topmost point would be the maximum.