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The position of a particle is expressed ...

The position of a particle is expressed as ` vecr = ( 4t^(2) hati + 2thatj)` m, where t is time in second. Find the velocity o the particle at t = 3 s

A

`24.08m//s^(–1)`

B

` 20.04m//s^(-1)`

C

`27.06 m//s^(-1)`

D

`32 m//s^(-1)`

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The correct Answer is:
A
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MOTION-ONE DIMENSION MOTION-EXERCSE -1 (Section - A : Distance, Displacement, Velocity and Acceleration, Equation of Motion )
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