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[" 17.A car of mass "m" ,travelling at s...

[" 17.A car of mass "m" ,travelling at speed "v" ,stops "],[" in time "t" when maximum braking force is "],[" applied.Assuming the braking force is same "],[" for both cases,what time would be required "],[" to stop a car of mass "2" m travelling at speed? "],[" c) "sqrt(2)t" to "(1)/(2)t],[" d) "2t]

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