Asked by Anonymous

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?

Answers

Answered by Steve
((10-25) m/s)/240s = -1/16 m/s^2
Answered by bobpursley
it is slowing down, the acceleratin is negative with respect to the forward direction.
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