# Understanding Newton's Laws.

What are Newton's 3 Laws?

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...leration of an object varies directly as the external unbalanced force is applied to it and inversely to its mass"

That is,

a = F/ m

or F = ma

Where

f is force

m is mass

a is acceleration

This also states that the rate of change of momentum of a body is equal to the force applied on it.

That is:

force F = dP/dt

Where

P is the momentum. Momentum is the ...