A block is at rest on the incline shown in the figure. The coefficients of static and ki- netic friction are us = 0.81 and Up = 0.69, respectively. The acceleration of gravity is 9.8 m/s- 18 kg 360 What is the frictional force acting on the 18 kg mass? Answer in units of N. 023 (part 2 of 3) 10.0 points What is the largest angle which the incline can have so that the mass does not slide down the incline? Answer in units of . 024 (part 3 of 3) 10.0 points What is the acceleration of the block down the incline if the angle of the incline is 410 ? Answer in units of m/s