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I am not sure whether Newton actually stated this law... It's more like an analogy, or equivalent. It is still valid, though.

Newton's Second Law for linear movement: force = mass x acceleration.

The equivalent for rotational movement: torque = (moment of inertia) x (angular acceleration).

Keeping it simple: acceleration = change in velocity/time for change. Velocity is a vector having both size and direction, thus any change in direction changes velocity. Not its magnitude, just its direction. A change in velocity with time means the object is accelerating. To do this a force must be applied perpendicular to the direction of the velocity vector to pull the object round into a circle. F=ma applies, therefore.

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11y ago
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14y ago

external net torque = moment of Inertia x angular acceleration

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Q: Newton's second law for rotational motion?
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Continue Learning about Natural Sciences

Newtons second law of motion deals with?

acceleration


What is is force equal to according to newtons second law of motion?

(Mass) x (Acceleration)


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Actually, the first one is completely independent on the second one. But the second one doesn't make any sense without the first one.


How are force and mass related in newtons second law?

they both are always making time and is always in motion

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Newtons second law of motion deals with?

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What does newtons second law of motion look like?

The link at the bottom will help you out, its a video