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MHT CET202020 Oct 2020Evening ShiftPhysicsLaws of MotionActual

A body is moving along the horizontal surface with a velocity of 4 ~m / s . If the coefficient of kinetic friction is 0.2 , the distance travelled by body before coming to rest is ( g =10 ~m / s ² )

Options

  1. A8 ~m
  2. B16 ~m
  3. C4 ~m
  4. D6 ~m

Correct answer

C. 4 ~m

Step-by-step solution

f= mg . a=-f / m=- m g m =- g=-(0.2) 10=-2v²=u²+2 a ss=4

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