At the instant that the velocity of the crate is v⃗ =(3.40m/s)ι^+(2.20m/s)j^, what is the instantaneous power supplied by this force?

I found some missing information about this problem online. We are given the force:

Power is defined as the rate of doing work. 
This is the formula:

Where P is power, W is work. 
Work is defined as:

F is the force and r is the displacement.
If we assume that force is not changing (it's constant) with time we get:

Keep in mind that both force and velocity are vectors, so we have to multiply each component separately.
Finally, we get: