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At time t second, a practical of mass ...

At time t second, a practical of mass 3 kg has position Vector `vecr` metre where `vecr= (3t) hati – (4 cost t ) hatj` . The impulse of the force during the time interval `0 letlepi/2` is

A

`12 hatj Ns`

B

`9hati Ns`

C

`4 hatj Ns`

D

`14 hatj Ns`

Text Solution

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The correct Answer is:
A
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