how would you arrive at a mathematical formula to measure force using second law of motion define the unit of force using this formula.
Chapter- force and laws of motion
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Explanation:
let a force F be applied on a body of mass m for time t due to which its velocity changes from u to v . then
initial momentum=mu
final momentum=mv
change in momentum of the body in t sec=mv-m
=m(v-u)
rate of change of momentum
change in momentum-÷time=m(v-u)÷t
but acceleration a=v-u÷t
rate of change of momentum-=ma
=mass×accaleration
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