Assume frictionless surface, M2 = 13.15 kg, T = 82.8 N, a = 4.14 m/s2
T = 8.36 N, Theta = 66 degrees
Assume frictionless surface and starting from rest a = 0.546 m/s2,
t = 2.87 s, v = 1.57 m/s
Using density of air as 1.2 kg/m3 and coefficient C of .4 yields
v = 38.7 m/s. Using C=1 yields v=24.5 m/s
Angular velocity is 2 pi radians per 2.5 seconds gives 2.51 radians/second; the friction is
up, the weight is down and normal is toward the center of the circle; the coefficient
of static friction is 0.388
Assume frictionless, a = 0 m/s2, t = 1.67 s, F = 98 N
Without friction v = 10 m/s; with friction v = 5.05 m/s; The coefficient of friction is 0.271
