Question

A car is pushed with a force of 450 N for 19.4 seconds. What impulse was applied to the car?​

Answer 1

Answer:

impulse = 8820 kg·$\frac{m}{s}$ or 8820 N·s

Explanation:

Impulse J is equal to the average force $F_{av}$ multiplied by the elapsed time Δt or in equation form, J = $F_{av}$Δt

As long as your force of 450 N is constant then that value is your average force $F_{av}$ and your elapsed time is 19.4 seconds.

Multiply these values.

You will get an impulse of 8820 kg·$\frac{m}{s}$ or 8820 N·s.