Calculate the torque about an axis

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A 72cm wide door is pushed open with a 90 N force applied to the end opposite the hinges. For each of the following, calculate the torque about an axis that passes through the hinges.

(a) The force is applied perpendicular to the face of the door. In N m

(b) The force is applied at 25degrees from the perpendicular to the face of the door, toward the hinges. In N m

(c) The force is applied at 70degrees from the perpendicular to the face of the door, toward the hinges. In N m

(c) The force is applied parallel to the face of the door.

A narrow bar of uniform thickness is 9.1 m long and its mass is 27kg. The bar is supported horizontally from a ceiling by two vertical ropes. One rope is 1.8m from one end of the bar. The second rope is 2.3m from the other end of the bar.

(a) What is the tension in the first rope?In N

(b) What is the tension in the second rope? In N

Reference no: EM132490421

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