Question

State and derive 2nd law of motion

Answer 1

force = change in momentum/time

Answer 2

Answer:

2nd law of motion states that force acting on body is the product of mass and acceleration i.e.:

F = ma

Explanation:

Derivation —

Force is nothing but change in momentum of a body in time t.

F ∝ mv - mu / t

F ∝ m( v-u) / t

F ∝ ma ( a = v-u/t)

F ∝ kma

Now if mass is 1kg and acceleration is 1m/s²,then its is said that a force of 1N is applied on the object.

So,we get our formula 1N = 1kg × 1m/s²

F = ma