A 4g bullet is fired horizonta with a speed of 300m/s into 0.8 kg wooden block kept on table if coeff of friction is 0.3.how far block slide
Answer (1)
5th Dec, 2018
Assuming there is no loss in the collision and all the kinetic energy of bullet is converted into heat by the frictional force.
Therefore the work done by friction force will be equal to the kinetic energy.
Kinetic energy of bullet = 0.5*0.004*300*300=1800J
Friction force=0.3N
Here N=8.04 nearly equal 8.
Let d be the distance then
2.4d=1800
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