Work, Power and Energy: Advanced — Variable Force Integration MCQ

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Advanced — Variable Force IntegrationHardQuestion 30481

Question

Force on a particle: F = (4 − 2x) N, where x is in metres. Work done from x = 0 to x = 3 m is:

3 J

W = ∫₀³ (4−2x) dx = [4x − x²]₀³ = 12 − 9 = 3 J.