The Expert TA| Human like Grading, Automated

Question 1: When opening a door, you push on it perpendicularly with a force of 55N at a distance of0.85m at the hinges.

What torque, in newton meters, are you exerting relative to the hinges?

Question 2: A wrench is used to apply a torque to a bolt. Forces F1through F6 all has the same magnitude. The point of application of forceF1(andF4) is a distance from the center of rotation of the bolt. The application points of F1, F2, andF3are all distanced apart, as shown. Use the convention that counter­clockwise torques are positive? clockwise torques are negative.

Part (a) Which of the labeled forces will apply the largest magnitude torque on the bolt?

Part (b) Which of the labeled forces will apply the smallest magnitude torque on the bolt?

Part (c) Determine the torque applied on the bolt by F1in terms of the variables and angles given in the problem.

Part (d) Determine the torque applied on the bolt by F2in terms of the variables and angles given in the problem.

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