Understanding Impulse

Impulse is the change in momentum of an object. It's calculated as the product of the force applied and the time over which the force acts.

Formula:

Impulse (J) = Force (F) × Time (Δt)

Calculations:

* Force (F): 400 N

* Time (Δt): 1 second

* Impulse (J): 400 N × 1 s = 400 Ns

Answer: The magnitude of the impulse is 400 Ns.