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19 April, 05:16

A train approaching a crossing changes speed from 25 m/s to 10 m/s in 240 s. How can the train's

acceleration be described?

a. The train's acceleration is negative.

b. The train is not accelerating.

c. The train will come to rest in 6 minutes.

d. The train's acceleration is positive.

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Answers (1)
  1. 19 April, 09:09
    0
    A

    Explanation:

    V1=25m/s

    V2=10m/s

    t=240s

    a = (V2-V1) / t

    a = (10m/s-25m/s) / 240s

    a = - 0.0625 m/s2
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