Question

When a body of mass'm' is thrown up with a velocity 'v, its kinetic energy decreases progressively and after reaching a maximum height 'H', it comes downwards. Explain the transformation of

energy during the whole journey of the body.

(b) Express the law of conservation of energy mathematically as followed in this​

Answer 1

Explanation:

Total Energy = Kinetic Energy + Potential Energy

As object move upward is velocity will decrease due to deceleration by gravity.

So its kinetic energy =

2

1

mv

2

will decrease as it move upward.

But its potential energy =mgH will increase as it move upward.

Hence, total energy will remain constant