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  3. A block of mass 1kg is released from a certain point on a smooth inclined plane of angle of inclination of from the horizontal. The block travels 8.7

. A block of mass 1kg is released from a certain point on a smooth inclined plane of angle of inclination of from the horizontal. The block travels 8.7

A block of mass 1kg is released from a certain point on a smooth inclined plane of angle of inclination of from the horizontal.  The block travels 8.75 m then it travels 1.25 m in the sand & stops.  Find the magnitude of average resistance force exerted by the sand on the block
                                  

  • (A):10 N
  • (B):20 N
  • (C):40 N
  • (D):none of these

Best Answer

Correct Answer:

(C): 40 N

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