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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

`18hat(i)+3hat(j)`

B

`18hat(i)+6hat(j)`

C

`3hat(i)+18hat(j)`

D

`18hat(i)+4hat(j)`

Text Solution

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The correct Answer is:
B
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