Question

What is the force acting on a seat with a 180 lbs person if the car is rear ended from another car at 50 miles an hour differance. Make any assumptions you need.

Answer 1

Answer:

3.667 lbf

Explanation:

m=180 lbs given

acceleration of the car as the car is rear ended with other car

a=$\frac{50-0}{1}$=50 miles/$hr^2$

=50miles/$hr^2$

=$\frac{5\times 5820}{3600^2}$ ft/$sec^2$

=0.02037 ft/$sec^2$

now force acting on the seat= ma

where m=mass

a= acceleration

f=180×0.02037

=3.667 lbf