Question

Explain Newton's second law with formula in a easy way .

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Answer 1

You must have understood newton's first law.

in a way, one can say that it's an extension of 2nd law too.

coz 2nd law states that rate of change of momentum is proportional to unbalanced force applied.

and that lead us to formula of

F=m.a

now, as said rate of change of momentum is proportional that very well implies that force is proportional to both mass and the acceleration. Also, proved by the formula upward.

now, how 1st law can be extension of 2nd law?

let's take change of momentum be zero, so obviously force net applied must be zero, hence body won't have any change in its motion, direction too