Question
Fri August 10, 2012 By:

the rate of change of momentum is proportional to m(v-u)/t or is equal to it.kindly explain.

Expert Reply
Fri August 10, 2012
Momentum is defined as : p = mv
thus rate of change of momentum clearly is m(v-u)/t
Dont confuse it with the second law of motion.
It says that force is proportional to rate of change of momentum.
i.e F is directly proportional to m(v-u)/t
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