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## Answers

According to Newton's second law:The rate of change of momentum of a body is directly proportional to the applied force.Suppose a body of mass m having an initial velocity u.Initial momentum=munow a force F acts on the body for time t,and final velocity becomes v.Final momentum=mvChange in momentum=mv-muNow according to Newton's law

A= F/M....... this leads to F=M*A