10. A 4.5 kg block is pulled across a horizontal surface that has a
coefficient of kinetic friction of 0.40. a). Draw a free-body diagram that
includes the vertical and horizontal forces. b) What is the normal force? c)
What is the force of friction exerted by the surface on the block? d). If the
block is pulled by a 25 N force, what is the net force acting on the block?
e). What is the acceleration of the block? Be sure to draw