A block of mass is pressed against a spring and released. What ... | Filo

Button Is Pressed

A block is pressed against a vertical wall by a force P⃗, as the drawing shows. This force can either push the block upward at a constant velocity or allow it to slide downward at a constant velocity, the magnitude of the force being different in the two cases, while the directional angle θis the same. Kinetic friction exists between the block and the wall. (a) Is the block in equilibrium in each case? Explain. (b) In each case what is the direction of the kinetic frictional force that acts on t