# What is Newton’s Second Law of Motion in Physics

## Newton’s Second Law of Motion

The acceleration of a body, “a” is directly proportional to the net force acting upon it F, and inversely proportional to its Mass “m”.

Derivation

According To The Newton‘s Second law of motion when a force acts on an object it produces an acceleration which is directly proportion to the amount of the force,

So,  F =  ma

Where:

F = force [N]

M= mass [kg]

A = acceleration caused by F [mS-2]

1. Force

Changes the size, shape, state of rest, velocity and/or direction of an object

Force is a vector quantity.

1. Mass

The quantity of matter contained in a body is called mass.

Formula

F = ma

m = F/a

Unit:

The unit of mass in M.K.S system is Kilogram (kg)

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