Physicseasy · Past Paper
What is the gravitational potential energy of a 2 kg object at a height of 5 m from the earth? (g = 9.8 m/s^2)
A10 J
B98 J
C49 J
D19.6 J
✓ Correct Answer: B — 98 J
PE = mgh = 2 * 9.8 * 5 = 98 Joules.
Share this question
More from Physics
- A car starts from rest and covers 100m in 5s. What is its acceleration?
- A stone is dropped into a well 44.1m deep. The sound of splash is heard 3.13s later. The velocity of sound is:
- An object is thrown upwards with a velocity of 19.6 m/s. How long will it take to reach the top? (g = 9.8 m/s^2)
- Which of the following media allows sound to travel fastest?
- If the Earth stops rotating, the value of 'g' at the equator will: