Question

Derivation of 2 law of motion

Answer 1

Ac to Newton's second law of motion
the accn of an object produced by a net force is directly proportional to the magnitude of the net force and inversely proportional to the mass of the object ,in the same direction as the net force .
or
the rate of change of linear momentum of a body is directly proportional to the applied external force and in the direction of force.
we know that ,
P=mv
F directly proportional to dp/dt
F=kdp/dt
F=kd(mv)/dt
F=kmdv/dt
F=kma
Experimentally , k=1
Hence,. { F=ma. }....proved