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J = p = Ft

Definition

The equation J = p = Ft represents the relationship between impulse (J), momentum (p), applied force (F), and time (t). It shows that impulse is equal to the change in momentum, which can be calculated by multiplying the force applied over a certain period of time.

Analogy

Imagine you are playing billiards and you hit one ball with your cue stick. The harder you strike the ball (greater force) and the longer your cue stick stays in contact with it (more time), the greater its change in momentum will be.

Related terms

Force: Force is a push or pull exerted on an object that can cause it to accelerate or deform. It is measured in Newtons (N).

Momentum: Momentum refers to an object's quantity of motion and depends on its mass and velocity. It is calculated as the product of mass and velocity.

Time Interval: Time interval refers to the duration over which an event occurs or a process takes place. In relation to impulse, it represents how long a force acts on an object to produce a change in momentum.

"J = p = Ft" appears in:

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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.