hii can you answer A and b please with good handwriting thanks

8. A block is set on an adjustable ramp and the angle of incline is increased slowly until the block is observed to start sliding when the angle is 0. (a) Determine the coefcient of static friction, us, in terms of the maximum angle of incline, 0, at which the block can remain at rest on the ramp. (b) Considering the fact that us is almost always less than or equal to one, at what amount of incline would there be too 9 V) little friction to prevent virtually anything from sliding