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Unformatted text preview: 5. What quantities must be zero for equilibrium? 6. Mark each statement about the gymnast in the gure as True or False. Explain your reasoning. (a) The net torque is zero when she performs the stunt correctly. (b) The torque associated with her upper body tends to rotate her body clockwise. (c) The lever arm for the torque associated with her free leg is x 1 . (d) The torque produced by her free leg is larger in magnitude than the torque produced by her supporting leg. Warmup Questions Submit answers by 11:00 p.m. Monday November 7. 1. Warmup question for November 8. How does a ballerina manage to have her head oat at the same height for a long time when she performs a grand jete ? 2. Warmup question for November 3. Why does a gure skater spin faster when she pulls her arms in? 1 2...
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