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An object of mass 3 kg is at rest. Now a...

An object of mass 3 kg is at rest. Now a force `F = 6t^(2)hatj+2thatj` N is applied on the object. Find the velocity of the object at t=3 sec.

A

`18veci+3vecj`

B

`18veci-3vecj`

C

`3veci-18vecj`

D

`3veci+18vecj`

Text Solution

Verified by Experts

The correct Answer is:
A
`J=int_(0)^(t)F.dt, .J=m(v-u)`
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