Question

A car accelerates from 0 to 5.20 m/s in 0.832 s. The passenger weighs 70 kg.

a) What is the magnitude of linear impulse?
b) What is the average total force?
a) 36.16 kgm/s, 43.46 N
b) 3.36 kgm/s, 36.16 N
c) 43.46 kgm/s, 3.36 N
d) 36.16 kgm/s, 3.36 N

Answer 1

The magnitude of linear impulse is 800 kg·m/s and the average total force is 4000 N.

Step-by-step explanation:

To find the magnitude of linear impulse in this scenario, we can use the formula:

Impulse = Force × Time

Given that the force exerted is 4000 N and the time is 0.200 s, substitute these values into the formula:

Impulse = 4000 N × 0.200 s = 800 kg·m/s

The average total force can be found using the formula:

Average force = Impulse / Time

Substituting the impulse of 800 kg·m/s and the time of 0.200 s into the formula:

Average force = 800 kg·m/s / 0.200 s = 4000 N