In coming to a stop, a car leaves skid marks 62 m long on the highway.Assuming a deceleration of 4.30 m/s2 , estimate the speed of the car just before braking.

Answer 1

vf^2=vi^2+2ad
0=vi^2+2(-4.3)(62)
solve for vi

Answer 2

In coming to a stop, a car leaves skid marks 85 m long on the highway. Assuming a deceleration of 4.00 m/s2, estimate the speed of the car just before braking

Answer 3

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