A block of wood is pushed across a rough surface and slides to the right until it comes to a stop. What is the direction of the force of friction on the block of wood?

Can anybody me with this? ? (picture included.)

In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.

You notice the birds sitting on the electrical wires which of the following explain why the birds don't get shocked