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Question 1 Ahorse is at the edge of a merry go round and a dolphin is halfway to the edge. The merry go round spins at 10 rev/min. Which has a faster tangental speed? More information is needed. We need to know their masses. The dolphin The horse They are the same. D Question 2 A pencil is the hardest to rotate about which axis? about its midpoint, like a propeller. along its length, where the lead is. about its sharp end, like a pendulum. They are all the same At some point about 1/4 of the way from the eraser D Question 3 Compared with a force, a torque involves distance from a pivot force only force and angle only none of these force and distance from a pivot

Question 4 In the figure below the center of mass (CM) of the trucks is marked with a red X. Which truck is going to tip over? Band C A and B Conly Bonly O A only D Question 5 Inertial depends on mass alone. Rotational inertia depends on what? Mass only Distance from pivot only Mass and distance from pivot point None of these o Weight only