Question

a car moving at 12.0 m/s crashes into a tree and stops in 0.31 s. calculate the force the seat belt exerts on a passenger in the car to bring him to a halt. the mass of the passenger is 70 kg.

Answer 1

`\huge\boxed{\sf F=2709.7\ N}`

Step-by-step explanation:

Given Data:

Velocity = v = 12.0 m/s

Mass = m = 70 kg

Time = 0.31 s

Required:

Force = F = ?

Formula:

`\displaystyle F=(mv)/(t)`

Solution:

Put the given data in the above formula.

`\displaystyle F = ((70)(12))/(0.31) \\\\F=(840)/(0.31) \\\\F=2709.7 N\\\\\rule[225]{225}{2}`