The initial potential energy of an object is given by the formula:
Potential energy = mass * gravitational acceleration * height
In this case, the mass of the car is 1000 kg, the gravitational acceleration is 9.8 m/s^2, and the height of the cliff is 100 m.
Plugging in these values into the formula, we get:
Potential energy = 1000 kg * 9.8 m/s^2 * 100 m
= 980,000 J
Therefore, the initial potential energy of the car is 980,000 J.
The correct answer is b. 980,000 J.
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
a. 420,500 J
b. 980,000 J
c. 14,500 J
d. 98,000 Nm
1 answer
1 answer