the mass of bullet is 0.04kg and speed is 90m/s enter in a wooden block after traveling 60 cm inside the block bullet will stop. calculate frictional force on it.
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frictional force= kinetic energy of bullet
1/2*0.04*90*90 = frictional force
finally,
frictional force = 162 N
1/2*0.04*90*90 = frictional force
finally,
frictional force = 162 N
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