Q: When an object of 10kg is placed at a height of 7m from the ground, how much energy it will contained -
- A. 528J
- B. 686J
- C. 520J
- D. 588J
Correct Answer:
Option B - Here, m = 10 kg, h = 7 m g = 9.8 m/s ²
PE = mgh
E = 10 × 9.8 × 7 = 686 J
B. Here, m = 10 kg, h = 7 m g = 9.8 m/s ²
PE = mgh
E = 10 × 9.8 × 7 = 686 J
Explanations:
Here, m = 10 kg, h = 7 m g = 9.8 m/s ² PE = mgh E = 10 × 9.8 × 7 = 686 JAddress
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