Work, Power and EnergyHard
Question
A bullet is fired form a riffle. if the riffle recoils freely, the n the kinetic energy of the riffle will be :
Options
A.same as that of bullet
B.more than that of bullet
C.less than of bullet
D.non of these
Solution
For recoil of riffle, momentum will be conserved
MV = mv
As < M, kinetic energy of riffle < kinetic energy of bullet.
MV = mv
As < M, kinetic energy of riffle < kinetic energy of bullet.
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