Calculate the force (in N) needed to bring a 1000 kg car to rest from a speed of 80.0 km/h in a distance of 115 m (a fairly typical distance for a non-panic stop). Suppose instead the car hits a concrete abutment at full speed and is brought to a stop in 2.00 m. Calculate the force exerted on the car and compare it with the force found in part (a). force in (b) force in (a)  =

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