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mel-nik [20]
3 years ago
7

A car is traveling at 112 km/h when the driver sees an accident 70 m ahead and slams on the brakes. What minimum constant decele

ration (in m/s2) is required to stop the car in time to avoid a multi-car pileup? (Round your answer to two decimal places.)
Mathematics
1 answer:
ANTONII [103]3 years ago
3 0

velocity=distance/time

31.1m/s=70/t

t=70/31.1

t=2.25secs

acceleration=velocity/time

a=31.1/2.25

a=13.82ms-²

therefore the constance deceleration=13.82ms-²

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