Forces_5

As shown in the figure below, a block of mass 3 kg is pushed up against the vertical wall by a force of 60 N acting at 45o to the horizontal (ceiling). The coefficient of kinetic friction between the block and the wall is 0.61.
Find the magnitude of the frictional force |𝐹_𝑘 |.
Find the force F needed to keep the block moving up with a constant velocity.