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A 67.0-kg man is driving an 1100-kg car at 40.0 mph when the car hits a...

A 67.0-kg man is driving an 1100-kg car at 40.0 mph when the car hits a 300.0-kg telephone pole and comes to a sudden stop.

a. Calculate the impulse needed to stop the man.

b. If the man is not wearing a seatbelt and there is no airbag, he will hit the dashboard, which stops him in 5.0 milliseconds. Calculate the force of the dashboard on the man.

c. If the person is not wearing a seatbelt, but the airbag deploys and stops him in 50.0 milliseconds. Calculate the force of the airbag on the man.

d. How much lower force, as a percentage, does the man experience with the airbag compared to without?

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