Question

a child is swinging on swing, describe what happens to both the kinectic energy and potential enegry of the child as she swings up and down.

Answer 1

The K.E is maximum when the child is at the vertical position and the P.E is maximum at the extreme deviated position from the vertical.

Step-by-step explanation:

• A child is swinging on swing up and down has both kinetic and potential energy.
• The total mechanical energy of the system is conserved throughout the system. At any instant the total mechanical energy is given by,

E = K.E + P.E

• The K.E is maximum when the child is at the vertical position.
• The P.E is maximum at the extreme deviated position from the vertical.
• And when K.E is maximum P.E becomes minimum and vice versa as per the law of conservation of energy.