A diver who weighs 500 N steps off a diving board that is 10 m above the water.The diver hits the water with kinetic energy of

Question

Quizplus · Accepted Answer

The potential energy of the diver at the height of 10 m is given by:

PE = mgh

where m is the mass of the diver, g is the acceleration due to gravity (9.8 m/s^2), and h is the height of the diving board (10 m).

Since weight = mg, we have:

PE = mgh = weight × h

= 500 N × 10 m

= 5000 J

This potential energy is converted entirely into kinetic energy just before the diver hits the water. Therefore, the kinetic energy of the diver when hitting the water is also 5000 J.

Thus, the correct answer is D) 5000 J.

A Diver Who Weighs 500 N Steps Off a Diving