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physics

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A train accelarates uniformly in a straight line at 0.3m/s^2 from rest. Calculate the velocity 15 seconds after its departure. Calculate time taken to reach 30km/h and calculate Distance covered by the train

  • physics - ,

    (a)
    v=at=0.3•15=0.45 m/s
    (b)
    v₁=30km/h=30000/3600 =833.3 m/s
    t₁=v₁/a=833.3/0.3 =2777.8 s.
    (c)
    s=v₁²/2a= 833.3²/2•0.3=1157314 m =1157 km

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