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PhysicsNEET 2019Work by constant and variable forces

Work, Energy and Power

A force F=20+10yF = 20 + 10y acts on a particle in the yy-direction, where FF is in newton and yy in metre. The work done by this force to move the particle from y=0y = 0 to y=1y = 1 m is:

  1. A.30 J
  2. B.5 J
  3. C.25 J✓
  4. D.20 J

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