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Question 30444
JEE Physics · Hard

Work, Power and Energy: Variable Force Work MCQ

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Variable Force WorkHardQuestion 30444

Question

A force F = 2x N acts on a particle (x in metres). Work done from x = 0 to x = 4 m is:
  1. A
    32 J
  2. B
    16 J
    Correct
  3. C
    8 J
  4. D
    4 J

Correct answer

16 J

Explanation

W = ∫₀⁴ 2x dx = [x²]₀⁴ = 16 J.

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