Qveenmunn Qveenmunn

04-05-2016
Physics

Answered

A racecar driver accelerates many times during a race. If a driver accelerates from 70m/s to 100m/s in 1.5 seconds before making a turn, what is the acceleration on the driver?

A30ms2
B−30ms2
C20ms2
D−20ms2

Verified Answer :

Anonymous Anonymous

04-05-2016

a=(vf-v₀)/t

Data:
vf=100 m/s
v₀=70 m/s
t=1.5 s

a=(100 m/s - 70 m/s)/1.5 s=30 m/s / 1.5 s=20 m/s².

answer: C. 20 m/s²

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