chloepughjones chloepughjones

24-09-2022
Physics

Answered

By measuring the length of the skid marks, an accident investigator determines that the distance a car travelled between the brakes being applied and stopping was 22 m.

The investigator used a sled to determine the friction. The investigator then calculated that the car decelerated at 7.2 m / s2.
Calculate the speed of the car just before the brakes were applied.

Please help, i’m so confused!!

Answer :

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