Numbers 1,2,4,6 explanations

Physics Honors Chapter 8 Quiz - Form B 5. In the figure to the right, the pulley system The following objects have identical masses. consists of two solid disks of different radii Which object has the greatest moment of inertia fastened together about point P? coaxially, with two different masses connected as shown above. If M = M 10 kg, m = 3 kg, R = m 3 m, and r = 1.5 m, find the net torque on the pulley. A. 6.0 N . m B. 24 N . m 2.00 m C. 59 N . m D. 235 N . m - 3.50 m E. 400 N . m A uniform 1086 N beam that is 3.50 m long is suspended horizontally by two vertical wires at its ends. A small but dense 800 N weight is placed on M M 2M the beam 2.00 m from one end, as shown in the figure. What is the tension in cable A? A. 600 N 1016 3 . B. 800 N C. 1000 N D. 1200 N M E. 1400 N 3. A force of 180 N is applied to the end of a 0.84 m 6. long torque wrench at an angle 20 from a line A rod of mass M has point masses of mass M and joining the pivot point to the handle. What is the 2M attached to each end. The center of mass of magnitude of the torque generated about the pivot the rod is marked by the black dot. The rod is point? 180 104 rotated about the dotted lines marked 1, 2, and 3 A. 10.6 N . m B. 12.3 N . m Which of the following is the correct ranking for C. 18.4 N . m 202 the moment of inertia of the rod about each axis? D. 21.3 N . m A. 1 1 > 12 > 13 E. 51 7 N . m B. 12 > 13 > /1 4. Disk A has a mass M and radius R. Disk B has a C. 11 = 12 > 13 mass 3M and a radius 4R. How many times greater D. 13 > 12 = 11 is the moment of inertia of Disk B than Disk A? E. |1 > 13 > 12 A. 3 234 B. 4: C. 12 D. 36 E. 48 3 /4 B M GR