A particle moves along x-axis in such a way that its coordinate (x) varies with time (t) according to the expression x=6t2+5t+2 Its initial velocity is

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3 m/s

-5 m/s

5 m/s

-3 m/s

answer is C.

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Detailed Solution

Given x=6t2+5t+2∴ Velocity V=dxdt=12t+5The velocity at t=0 is known as initial velocity.∴ Initial velocity V=5m/s

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