Asked by john smith

A car accelerates from rest at 7.9 m/s2.
How much time does it need to attain a
speed of 5 m/s?

Answers

Answered by Henry
a = (Vf - Vo) / t = 7.9 m/s^2,
(5 - 0) / t = 7.9,
5/t = 7.9,
t = 5 / 7.9 = 0.63 s.
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