A runner decreases his velocity from 20 m/s to 10 m/s in 2.0 s. What was his average acceleration?

Question

A runner decreases his velocity from 20 m/s to 10 m/s in 2.0 s.
What was his average acceleration?

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Tài Đức 3 years 2021-07-14T17:58:43+00:00 2 Answers 93 views 0

Answers ( )

  1. Farah
    0
    2021-07-14T18:00:04+00:00
    Reply

    Acceleration = change in velocity/change in time

    So you should have (20-10)/(0-2)= -10/2 = -5

    So your answer is -5

  2. binhan
    0
    2021-07-14T18:00:22+00:00
    Reply

    Answer: -5.0 m/s ^2

    Explanation:

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )