A 2 kg block of wood rests on a long table top. A 5 g bullet moving horizontally with a speed of 
is shot into the block and sticks to it. The block then slides 2.7 m along the table top and comes to a stop. The force of friction between the block and the table is
Text Solution
Verified by ExpertsThe correct answer is:
A
Velocity of block just after collision,
(from conservation of linear momentum)
Let 
be the force of friction, then work done against friction 
initial kinetic energy
or 
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