(b) The speed of a train is reduced uniformly from 20 km/h to 10 km/h while travelling a distance of 80 m. (i) Calculate the deceleration of the train. (ii) Assuming that the deceleration is constant, how much further will the train travel before coming to rest? (iii) Determine the total time taken for the train to come to rest from a speed of 20 km/h.

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Chapter1: Units, Trigonometry. And Vectors
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(b) The speed of a train is reduced uniformly from 20 km/h to 10 km/h while
travelling a distance of 80 m.
(i) Calculate the deceleration of the train.
(ii) Assuming that the deceleration is constant, how much further will the train
travel before coming to rest?
(iii) Determine the total time taken for the train to come to rest from a speed of
20 km/h.
(iv) Sketch the velocity versus time graph for the motion of the train.
Transcribed Image Text:(b) The speed of a train is reduced uniformly from 20 km/h to 10 km/h while travelling a distance of 80 m. (i) Calculate the deceleration of the train. (ii) Assuming that the deceleration is constant, how much further will the train travel before coming to rest? (iii) Determine the total time taken for the train to come to rest from a speed of 20 km/h. (iv) Sketch the velocity versus time graph for the motion of the train.
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