Question:
A small block having a mass m given a velocity u when it is
Last updated: 6/12/2023
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A small block having a mass m given a velocity u when it is on top of a horizontal board of sufficient length Mass of the board is 3m and is situated on a frictionless floor as shown The total work done by frictional force from the moment of projection to time t is M Drough 7 3m m 15 1 mu 2 smooth 30mu 3 mu 4 2 mu 16