As P moves along the rough incline, the friction force will always oppose the motion of the block. As you see above, the friction force points up the incline as the velocity of the block points down ...

Companies are using A.I. as a reason for layoffs, but the truth may be more complex. By Kevin RooseCasey NewtonRachel CohnWhitney JonesVjeran PavicKatie McMurranDan PowellRowan Niemisto and Diane Wong ...