According to the second law,the rate of change of momentum is proportional to the impressed force then ma is proportional to P i.e. ma=kP,k being the constant of proportionality.Then why it is written P=kma?

Dear aniket,

It is quite simple.

ma=kP

OR P=(1/k)ma

1/k is also a constant so we can write P=k'ma where k' is also a constant

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Sagar Singh

B.Tech IIT Delh

ma=kP OR P=(1/k)ma 1/k is also a constant so we can write P=k'ma where k' is also a constant