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NTA Abhyas JEE Main2020PhysicsLaws of MotionPractice

A ball of mass 0 . 2 kg is thrown vertically upward by applying a force by hand. If the hand moves 0 . 2 m while applying the force and the ball goes up to 2 m height further, find the magnitude of the force. Consider g = 10 m s - 2

Options

  1. A4   N
  2. B16   N
  3. C20   N
  4. D22   N

Correct answer

D. 22   N

Step-by-step solution

W = ∆ T E F × 0.2 = m g h F × 0.2 = 0.2 × 10 × 2 + 0.2 F = 22   N

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