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JEE Main2003PhysicsLaws of MotionActual

A horizontal force of 10 ~N is necessary to just hold a block stationary against a wall. The co-efficient of friction between the block and the wall is 0.2 . The weight of the block is

Options

  1. A20 ~N
  2. B50 ~N
  3. C100 ~N
  4. D2 ~N

Correct answer

D. 2 ~N

Step-by-step solution

f = mg N = W .10= W 0.2 10= W W =2 ~N

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