A 50.0 kg driver is riding at 35.0 m/s in her red sports car when she must suddenly slam on the brakes to avoid hitting a deer crossing the road. She strikes the air bag, which brings her body to a stop in 0.500 s. a. What average force does the seat belt exert on her? b. If she had not been wearing her seat belt and not had an air bag, then the windshield would have stopped her head in 0.002 s. What average force would the windshield have exerted on her? c. What is the impulse delivered to her when the air bag changes her momentum? d. What is the impulse delivered to her when the windshield changes her momentum?
A 50.0 kg driver is riding at 35.0 m/s in her red sports car when she must suddenly slam on the brakes to avoid
hitting a deer crossing the road. She strikes the air bag, which brings her body to a stop in 0.500 s.
a. What average force does the seat belt exert on her?
b. If she had not been wearing her seat belt and not had an air bag, then the windshield would have stopped her
head in 0.002 s. What average force would the windshield have exerted on her?
c. What is the impulse delivered to her when the air bag changes her momentum?
d. What is the impulse delivered to her when the windshield changes her momentum?
e. Compare the two impulses calculated in c and d and justify the results.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images
