1.

A bus is moving on a horizontal road with speed `5m//s`. A & B are two persons in bus, A is standing in bus and B is running towards A inside the bus with speed `2m//s` (w.r.t bus). Find the speed of B relative to C in (m/s)

Answer» Correct Answer - 6
`P=(4)/(10)xx1200=480" watt "implies f_(r )xxv=480`
`f_(r )=(480)/(8)=60N`
`f_(r )impliesmuNimplies 60=mu(100)," So "mu=0.6`


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