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A particle starts moving along the x-axi...

A particle starts moving along the x-axis from `t=0`, its position varying with time as `x=2t^3-3t^2+1`.
a. At what time instants is its velocity zero?
b. What is the velocity when it passes through the origin?

A

t = 0, 2s

B

t=0,3s

C

t=0,4s

D

t=0,1s

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The correct Answer is:
D
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