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(a) Compute the impulse necessary to bring to rest the 53.0 kg driver of an automobile initially moving at 20.0 m/s.

(b) Find the average force on the driver if the deceleration is accomplished gradually by the application of brakes over a 12.1 s interval.

(c) Find the average force if the car is stopped in a collision that brings the driver's seat to rest in 0.100 s, assuming the driver is restrained by a seat belt.

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