The velocity of a ball is thrown up is 20 meters/second. It attains zero velocity after 3.5 seconds. What is the average acceleration of the ball during its upward flight?

Question

Mathematics

Belen Myers

11 October, 15:20

The velocity of a ball is thrown up is 20 meters/second. It attains zero velocity after 3.5 seconds. What is the average acceleration of the ball during its upward flight?

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Answers (1)

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Marina Moses · Answer 1

Average acceleration: (v - v o) / Δ t

v = 0 m/s, v o = 20 m/s, Δ t = 3.5 s

a (average) = (0 m/s - 20 m/s) / 3.5 s = - 20 m/s / 3.5 s =

= - 5.7142857 m/s² ≈ - 5.71 m/s²