An object initially at rest experiences an acceleration of 5 m/s2. How much time will it take it to achieve a velocity of 40 m/s?

8 s

Explanation:

Given:

v₀ = 0 m/s

v = 40 m/s

a = 5 m/s²

Find: t

v = at + v₀

40 m/s = (5 m/s²) t + 0 m/s

t = 8 s

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