Ablock is at rest on the incline shown in the figure. the coefficients of static and ki- netic friction are μs = 0.45 and μk = 0.38, respectively. the acceleration of gravity is 9.8 m/s2 .a. what is the frictional force acting on the 25 kg mass? answer in units of nb. what is the largest angle which the incline can have so that the mass does not slide down the incline? answer in units of ◦c. what is the acceleration of the block down the incline if the angle of the incline is 29◦ ?