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The position vector of a moving particle...

The position vector of a moving particle at't' sec is given by `vecr = 3hati + 4t^(2)hatj - t^(3)hatk` . Its displacement during an interval of t = Is to 3 sec is

A

`hatj - hatk`

B

`3hati + 4hatj - hatk`

C

`9hati + 36hatj - 27 hatk`

D

`32 hatj - 26 hatk`

Text Solution

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The correct Answer is:
D
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