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9800 joule of energy was spent to raise a mass of 50kg, the mass was raised to a height of
  • a)
    10m
  • b)
    20m
  • c)
    980m
  • d)
    none of these
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
9800 joule of energy was spent to raise a mass of 50kg, the mass was r...
Potential energy = mgh, here, P.E = 9800 j. mass = 50kg, g=9.8m/s.
Therefore, 9800=50×9.8×h, h= 9800/50×9.8 = 20m.
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9800 joule of energy was spent to raise a mass of 50kg, the mass was raised to a height ofa)10mb)20mc)980md)none of theseCorrect answer is option 'B'. Can you explain this answer?
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