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The position of a particel is expressed ...

The position of a particel is expressed as ` vecr = ( 4t^(2)hati + 2thatj)` m. where t is time in second. Find the acceleration of the particle.

A

`- 8 hati m//s^(-2)`

B

`8 hati m//s^(-2)`

C

` 4 hati m//s^(-2)`

D

`- 4hati m//s^(-2)`

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