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Q: Find the potential energy of an object 3m mass raised from the ground at a height of h-
  • A. 6 mgh
  • B. 9 mgh
  • C. 3 mgh
  • D. 1/3 mgh
Correct Answer: Option C - Potential energy = m×g×h Here, mass = 3m Then, P = 3m×h×g = 3 mgh
C. Potential energy = m×g×h Here, mass = 3m Then, P = 3m×h×g = 3 mgh

Explanations:

Potential energy = m×g×h Here, mass = 3m Then, P = 3m×h×g = 3 mgh