2) A brick of mass m = 6.94 kg is on a horizontal surface. The coefficient of static friction between the brick and the surface is µs = 0.554, and

the coefficient of kinetic friction between the brick and the surface is Hx = 0.223. With the brick at rest, you start to incline one side of the surface. a) At what angle will the brick start sliding down the incdline? You must show all your work to get fullcredit. Use the starting point below, where f; is the force of static friction and F, is the component ofthe force of gravity that is directed down the incline. (4 points)fs = Fx b) What is the speed of the brick after sliding a distance of 5.30 m at the angle of incline found in part a?(4 points)