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NEET Physics · Medium

Work, Energy & Power: Work-Energy-Power Mixed MCQ

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Work-Energy-Power MixedMediumQuestion 6087

Question

Spring (k=400 N/m) compressed 0.1 m releases 0.2 kg ball vertically. Height reached:
  1. A
    1 m
    Correct
  2. B
    10 m
  3. C
    5 m
  4. D
    2 m

Correct answer

1 m

Explanation

½kx² = mgh. ½×400×0.01 = 0.2×10×h. 2 = 2h. h = 1 m.

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