A body is moving under the action of two force `vec(F_(1)=2hati-5hatj` , `vec(F_(2)=3hati-4hatj` . Its velocity will become uniform under a third force `vec(F_(3)` given by.

Options

A. `5hati-hatj`
B. `-5hati-hatj`
C. `5hati+hatj`
D. `-5hati+9hatj`

Answer

D