Physics

An object a is moving 10m/s and B is moving with 5m/s in the same direction of positive x-axis. A is 100m behind B has shown. Find time taken by a to meet b

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  1. time=relative distance/relative speed=100m/(10-5)m/s= 20 sec

  2. Va*t = Vb*t + 100.
    10t = 5t + 100,
    t = 20 s.

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