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 _____.

Question

Use g=9.8 m/s2

a
420,500 J
b
14,500 J
c
98,000 Nm
d
980,000 J

Answer 1

The initial potential energy can be calculated using the formula:

Potential Energy = mass * gravity * height

Given:
mass of the car (m) = 1000 kg
gravity (g) = 9.8 m/s^2
height (h) = 100 m

Potential Energy = 1000 kg * 9.8 m/s^2 * 100 m
Potential Energy = 980,000 J

Therefore, the initial potential energy is 980,000 J.

The answer is (d) 980,000 J.