PHYS 201 Midterm: PHYS 201 TAMU 201Fall 10 Exam 3
Document Summary
The formula sheet is the last page of the exam. No work needs to be shown. (6 pts) 1. A metal bar that has length l is pivoted about a hinge at its lower end. A horizontal force f is applied to the other end of the bar. The force vector for f makes an angle 0 with the bar. For an axis at the hinge, the magnitude of the torque due to f is (a) zero (b) fl sin 0 (c) flcoso (d) fl (e) none of the above. A solid cylinder of radius r = 0,060 mu. length l = 0. 120 in and mass m = 4. 00 kg is pivoted about a frictionless axle that lies along the axis of the cylinder. The moment of inertia of the cylinder for an axis along the axle is mr2. A force f is applied tangential to the rim of the cylinder.
