Question

Sania, a high-board diver of mass 50 kg is diving from a height of 30 m into a pool (see figure given below). Choose the correct statement.

• A. She has maximum mechanical energy at A.
• B. She has maximum potential energy at D.
• C. She has maximum kinetic energy at A.,
• D. She has maximum kinetic energy at D.

Answer 1

The correct option is D She has maximum kinetic energy at D.

At point D, velocity of the body is maximum ,hence kinetic energy is maximum.At point D, all the potential energy gets converted to kinetic energy as the height of the body becomes zero.