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    collinsdarkwah's Avatar
    collinsdarkwah Posts: 1, Reputation: 1
    New Member
     
    #1

    Oct 15, 2018, 05:59 PM
    Mechanics
    A train at station P accelerates uniformly from rest until it attains a speed of 100 km/h. It then continues at the speed for some time and decelerates uniformly until it come to a stop at a station Q 60 km from P. The total time taken for the journey is on hour. If the rate of deceleration is twice that of the acceleration. Calculate the:


    (I) Time taken during the constant speed is maintained


    (ii) Acceleration of the train

    A train at station P accelerates uniformly from rest until it attains a speed of 100 km/h. It then continues at the speed for some time and decelerates uniformly until it come to a stop at a station Q 60 km from P. The total time taken for the journey is on hour. If the rate of deceleration is twice that of the acceleration. Calculate the:


    (I) Time taken during the constant speed is maintained


    (ii) Acceleration of the train
    ma0641's Avatar
    ma0641 Posts: 15,681, Reputation: 1012
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    #2

    Oct 15, 2018, 08:15 PM
    Better get started, site rules require you to show your work.

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