Question

A car traveling at 28.0 m/s28.0 m/s hits a bridge abutment. A passenger in the car, who has a mass of 66.0 kg,66.0 kg, moves forward a distance of 56.0 cm56.0 cm while being brought to rest by an inflated air bag. Assuming that the force that stops the passenger is constant, what is the magnitude ????F of this force?

Answer 1

The answer to your question is: F = 924 N

Step-by-step explanation:

Data

v = 28 m/s

m = 66 kg

d = 56 cm

F = ?

Formula

v = d/t

a = v/t

F = ma

Process

t = d/v = 56 / 28 = 2 s

a = v/t = 28 / 2 = 14 m/s²

F = 66 (14) = 924 N