Question

When a body of mass 'm' is thrown up with a velocity 'v', it's 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

Answer 1

Answer:

when the ball starts its journey first when it go upwards it so kinetic energy decreases and potential energy increases and when it reaches to its greatest height it has only potential energy. when the ball ,over downwards its potential energy changes into kinetic energy.

law of conservation of energy states that energy can not be created nor destroyed.

Explanation:

hence we can say that the energy is conserved and it is following law of conservation of energy

work energy theorem can be also applied here which states that work done is nothing but the change of kinetic energy