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

An object of mass ` 3 kg ` is at rest. Now a force of ` vec F = 6 t^2 hat I + 4 t hat j` is applied on the object, the velocity of object at `t= 3 s` is.

A

`18veci +3vecj`

B

`18veci -3vecj`

C

`3veci -18vecj`

D

`3veci +18vecj`

Text Solution

Verified by Experts

The correct Answer is:
A
`J =underset(0)overset(t)intF.dt,J=m(v-u)`
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