4 . Two blocks of masses
3 kg and 5 kg on a surface are in contact with each other, as shown in
the figure. A force of 60N is applied to the 3 kg mass. The coefficient
of kinetic friction between the blocks and the horizontal surface is 0.45.
a. (5 points)
Draw free body diagrams for the two blocks, showing all forces acting
on each block.
b. (10 points)
Calculate the friction force on the 3kg and the 5 kg block.
