(a) Calculate the force (in N) needed to bring a 1100 kg car to rest from a speed of 90.0 km/h in a distance of 120 m (a fairly typical distance for a non-panic stop). N (b) 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) =

          (a) Calculate the force (in N) needed to bring a 1100 kg car to rest from a speed of 90.0 km/h in a distance of 120 m (a fairly typical distance for a non-panic stop).
N
(b) 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) =

(a) Calculate the force (in N) needed to bring a 1100 kg car to rest from a speed of 90.0 km/h in a distance of 120 m (a fairly typical distance for a non-panic stop).
N
(b) 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) =

Added by Russell T.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Sahil Kumar

07/21/2022

Step 1

0 km/h in a distance of 120 m. Given: - Mass of the car, m = 1100 kg - Initial speed, u = 90.0 km/h = 25 m/s - Distance traveled, s = 120 m Acceleration, a = (v^2 - u^2) / (2s) a = (0 - 25^2) / (2*120) a = -2.6 m/s^2 Force, F = mass x acceleration F = 1100 kg x Show more…

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(a) Calculate the force (in N) needed to bring a 1100 kg car to rest from a speed of 90.0 km/h in a distance of 120 m (a fairly typical distance for a non-panic stop). (b) 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) =