Impulse

Impulse is the change in momentum of an object when a force is applied over a period of time. It is calculated as the product of the average force and the time duration over which the force acts.

Impulse (J) = Force (F) × Time (t) or J = Δp (change in momentum).

The unit of impulse is Newton-second (N⋅s) or kilogram-meter per second (kg⋅m/s).

Impulse is equal to the change in momentum of an object. This relationship is expressed as J = Δp.

Impulse = 10 N × 2 s = 20 N⋅s.

The momentum of the object changes by the amount of the impulse applied.

Impulse = 15 N × 3 s = 45 N⋅s; Change in momentum = 5 kg × final velocity; 45 N⋅s = 5 kg × final velocity; Final velocity = 9 m/s.

Impulse is the product of the average force applied and the time duration over which it is applied.

Impulse = 2000 N × 0.5 s = 1000 N⋅s.

Increasing the time duration of a force applied increases the impulse, resulting in a greater change in momentum.