When Danny Diver who weighs 500 N steps off a diving board 10 m above the water,he hits the water with kinetic energy of

Question

Quizplus · Accepted Answer

We can calculate the potential energy that Danny has before he jumps using the formula:

potential energy = mass * gravity * height

where mass is in kilograms (kg), gravity is approximately 9.81 m/s^2, and height is in meters (m).

Converting Danny's weight from newtons to kilograms:

mass = weight / gravity = 500 N / 9.81 m/s^2 = 51 kg

So, the potential energy is:

potential energy = 51 kg * 9.81 m/s^2 * 10 m = 4999.1 J

Assuming there is no air resistance or other sources of energy loss, Danny's kinetic energy just before hitting the water will be equal to his potential energy at the diving board:

kinetic energy = potential energy = 4999.1 J ≈ 5000 J

Therefore, the best choice is D.

When Danny Diver Who Weighs 500 N Steps Off a Diving