A car traveling at 7.3 m/s accelerates at the rate of 0.82 m/s2 for an interval of 7.4 s. Find vf.

Question

Physics

Janiya Madden

5 August, 21:33

A car traveling at 7.3 m/s accelerates at the rate of 0.82 m/s2 for an interval of 7.4 s. Find vf.

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Answers (1)

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Mackenzie Liu · Answer 1

Final velocity is 13.37 m/s

Explanation:

We have equation of motion v = u + at

Initial velocity, u = 7.3 m/s

Final velocity, v = ?

Time, t = 7.4 s

Acceleration, a = 0.82 m/s²

Substituting

v = u + at

v = 7.3 + 0.82 x 7.4

v = 13.368 m/s

Final velocity is 13.37 m/s