Problem: A string pulls a block across a horizontal surface. The block's mass is M= 4.43 kg. The string makes an angle theta 40.4 degrees with respect to the horizontal and has a tension T= 8.52 N. The coefficient of kinetic friction is 0.110 between the block and surface.
Part A: What is the magnitude of the normal force exerted by the horizontal surface on the block?
I want help to find the magnitude of the normal force exerted by the horizontal surface on the block.