Question

Vectors pleaseeeeeeee help ! :) [attachment included]

Answer 1

?

Answer 2

There's an attachment ..

Answer 3

Just evaluate the dot product between the given vectors, because that's how work is defined:
\[\Large F=Fs\cos\alpha =\vec{F}\cdot\vec{s} \]

Answer 4

There is no angle given

Answer 5

And that's where the RHS of the equation comes in handy, do you know how to compute the dot product?