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In Physics / High School | 2014-10-26

A car with a mass of 1330 kg is traveling at 28 m/s. The driver applies the brakes to bring the car to rest over a distance of 79 m. Calculate the force acting on the car.

Asked by carend1

Answer (1)

you could use SUVAT to work out the deceleration and then use F=ma
S= 79m U=28m/s V=0m/s A=? T=n/a
V^2 = U^2 + 2AS so 0 = 28^2 + 158A so -158A = 784
A= 4.962 (3dp)
so F = ma = 4.962 *1330 = 6599.494N (3dp)

Answered by beckyokeefe98 | 2024-06-10

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