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An object of mass 12 kgs is at a certain height above the ground. If the P.E of the object is 480 J,
find the height at which the object is with respect to the ground. Given, g = 10 ms–2
  • a)
    12 m
  • b)
    4 m
  • c)
    8 m
  • d)
    20 m
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
An object of mass 12 kgs is at a certain height above the ground. If ...
P.E. = mgh
480 J = 12 kg × 10 ms–2 × h
h = 480 J/120 kg ms-2
= 4 m
The object is at the height of 4 m above the ground.
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An object of mass 12 kgs is at a certain height above the ground. If the P.E of the object is 480 J,find the height at which the object is with respect to the ground. Given, g = 10 ms–2a)12 mb)4 mc)8 md)20 mCorrect answer is option 'B'. Can you explain this answer?
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