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Velocity(Speed with Direction)

The position ...

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The position of a particle moving along x-axis varies with time as x=2t*2t-3t+5, where x is in metre t is in second. The position of particle when velocity is 0 is

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Q. A particle starts moving along the x-axis from

t = 0

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x = 2 t^{3} - 3 t^{2} + 1

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b. What is the velocity when it passes through the origin?

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