The correct answer is option D - impulse = FΔt
It represents the product of the average net external force and the time interval over which this force acts. The impulse leads to a change in the momentum of an object, aligning with the impulse-momentum theorem.
The equation for impulse is given by impulse = F∆t, where F represents the average net external force and ∆t represents the time interval over which the force is applied. The impulse-momentum theorem connects impulse with the change in momentum, indicating that the impulse is equal to the change in momentum (∆p) of an object when a force is applied over a time period.
Impulse is an important concept in mechanics, particularly when analyzing collisions and the forces involved. It is often described with varying forces, which is why the concept of an effective force is used to simplify calculations.