P2207_lecture_questions_torque_equil_elasticity

P2207_lecture_questions_torque_equil_elasticity - What is...

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1 What is the angular velocity ϖ of the minute hand of a clock? ϖ (in rad/s) = ? A. 1 / 60 B. 2 π / 60 C. 1 / 3600 D. 2 π / 3600 A F 3 =40 N F 1 =100 N F 2 =100 N F 4 =150 N 30 ° Which force exerts the largest magnitude torque about the point A? A. F1 B. F2 C. F3 D. F4 E. F1 and F2 What is the net torque exerted by the 4 forces about the point A? Assume counterclockwise torques are positive . A F 3 =40 N F 1 =100 N F 2 =100 N F 4 =150 N 30 ° A. 80 N m B. 100 N m C. 180 N m D. 200 N m E. None of the above 1m 1m 1m 1m A. 60 N m B. - 60 N m C. 140 N m D. - 140 N m E. None of the above What is the net torque exerted by the 4 forces about the point B ? Assume counterclockwise torques are positive . B F 3 =40 N F 1 =100 N F 2 =100 N F 4 =150 N 30 ° 1m 1m 1m 1m
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2 F 1 L 2 L 1 F 2 pivot For rotational equilibrium, F 2 /F 1 = ? A. 1 B. -1 C. L 1 /L 2 D. L 2 /L 1 For rotational equilibrium, F 2 /F 1 = ? A.
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P2207_lecture_questions_torque_equil_elasticity - What is...

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