Question

A 1000 kg car traveling with a speed of 29 m/s drives horizontally off of a 100 m cliff. The initial potential energy is _____.

Use g=9.8 m/s2

(4 points)
Responses

980,000 J
980,000 J

98,000 Nm
98,000 Nm

420,500 J
420,500 J

14,500 J
14,500 J

Answer 1

U = mgh = (1000 kg)(9.8 m/s^2)(100 m) = 980,000 J

Answer: 980,000 J.