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JEE Main2007PhysicsLaws of MotionActual

A 2 ~kg block slides on a horizontal floor with a speed of 4 ~m / s . It strikes a uncompressed spring, and compresses it till the block is motionless. The kinetic friction force is 15 ~N and spring constant is 10,000 . N / m . The spring compresses by

Options

  1. A5.5 ~cm
  2. B2.5 ~cm
  3. C11.0 ~cm
  4. D8.5 ~cm

Correct answer

A. 5.5 ~cm

Step-by-step solution

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