Question

A 45.0-kg diver jumped to a maximum height of 12.0 meters. From there, the diver falls from rest and hits the pool at a speed of 8.83 m/s. How much energy was transferred into thermal energy during the fall?

Answer 1

3540 J

Step-by-step explanation:

Initial energy = final energy

Potential energy = kinetic energy + heat

PE = KE + Q

mgh = ½ mv² + Q

(45.0 kg) (9.8 m/s²) (12.0 m) = ½ (45.0 kg) (8.83 m/s)² + Q

Q = 3540 J