Physics
Grade-6
Easy
Question
If a body of mass 2 kg is at a height of 2 m, then find the gravitational potential energy with respect to earth (g =10 m/s2).
- 30
- 40
- 20
- 60
Hint:
U= mgh
The correct answer is: 40
- The formula for potential energy due to gravity is U = mgh.
- In this case, a body of mass 2kg kept at a height of 2m.
- Therefore, gravitational potential energy is given as 2×10×2= 40J.
- So, the correct option is b.
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