I'm reviewing some of our home work for our midterm this Monday and when I was reading the section on vector functions the part of the directions that kind of lost me is when they said:

"...Write the particle's velocity at that time as the product of its speed and direction."

I found the velocity vector

and at time t=0 I found that is

Then found the accelertion vector

and at time t=0 I get

..My question is : What am I suppose to write down when it asks to write the particles velocity as a product of its speed and direction?