A kicked ball rolls across the grass and eventually comes to a stop in 4.0 sec. When the ball was kicked, its initial velocity was 20 mi / hr. What is the acceleration of the ball as it rolls across the grass?

Question

14 January, 20:20

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Answers (1)

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Samir · Answer 1

-2.24 m/s²

Explanation:

Given:

v₀ = 20 mi/hr = 8.94 m/s

v = 0 m/s

t = 4.0 s

Find: a

v = v₀ + at

0 m/s = 8.94 m/s + a (4.0 s)

a = - 2.24 m/s²