PHYS 1100 : Exam2 F12 Sample
Document Summary
Phys 1100 - exam 2: a box of mass m is pushed up a frictionless plane at a constant speed by a constant force ~fa. The plane is inclined at an angle above the horizontal and the force ~fa is parallel to the plane. Question 2: a box of mass m = 25. 0 kg remains stationary on a rough plane that is inclined at an angle = 30. 0 above the horizontal. The coe cient of static friction between the box and the plane is 0. 50. What is the magnitude of the force of static friction acting on the box? (a) 245 n (b) 212 n (c) 123 n (d) 106 n (e) 53. 0 n. Question 3: a box of mass m = 12. 0 kg is pulled to the right by a rope across a frictionless horizontal surface. The rope is angled above the horizontal as shown in the gure below and has a tension of ft = 75. 0 n.
