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Question

A displacement s v/s time t curve of a particle is shown in the figure. The maximum instantaneous velocity vm of the particle is around the point

A
S with vm 2 m/s
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B
R and vm2 m/s
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C
Q and vm1 m/s
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D
R and vm0.5 m/s
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Solution

The correct option is B R and vm2 m/s
The slope of the displacement – time graph is maximum at R. It is easy to see that the slope decrease on the left as well as on the right of R.
The velocity at R is vm=ΔsΔt0.50.25=2 m/s

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