A 100kg mass is on an inclined plane of 30 degrees. It's connected to a second unknown mass that hangs over a frictionless pulley.
a) What is the unknown mass required to maintain an acceleration down the place of 1m per sec?
b) What is the tension in the rope?
c) If the system were at rest, what is the largest mass that could be hung without causing motion. Assume the coefficient of kinetic friction is 0.3, and the coefficient of static friction is 0.5.