A car traveling at 30m/s slows down to a stop 10s. what is the acceleration?

asked Nov 26, 2022 54.4k views

3 votes

by Redth

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5 votes

Answer:

since v decreased by 20m/s in 5 sec, a = -4 m/s^2

assuming the 3 seconds started at t=0,

s = 30t - 2t^2

s(3) = 30(3) - 2(9) = 72m

3.8k points

11 votes

Answer:

20 m/s. have a great day

Lukewestby answered Dec 3, 2022

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