# How does mass relate to acceleration?

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The acceleration of a body is proportional to the resultant (total) force acting on it:

$\mathbf{F} = m\mathbf{a} \quad \to \quad \mathbf{a} = \mathbf{F}/m$

where F is the resultant force acting on the body, m is the mass of the body, and a is its acceleration.

Thus the acceleration is reciprocally proportional to the mass.