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# problem_pdf - al zaabi(aka762 – OH-10 – bradley...

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Unformatted text preview: al zaabi (aka762) – OH-10 – bradley – (19101) 1 This print-out should have 18 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. This is Online Homework No. 10 (OH- 10). All answers should be submitted online before 1100 on Wednesday 20 April (UAE time). Computers and network connections can give trouble, so do not wait until the last minute! 001 10.0 points A solid sphere of radius R and mass m is held against a wall by a string being pulled at an angle θ . W P F θ R Determine the torque equation about the point P. 1. mg R = F (1 + cos θ ) R 2. mg R = F (1- cos θ ) R 3. mg R = F R 4. mg R = F (1- sin θ ) R 5. mg R = 2 F R 6. mg R = F (1 + sin θ ) R 002 10.0 points A uniform bar of length 32 m and mass 6 kg is attached to a wall with a hinge that exerts a horizontal force H x and a vertical force H y on the bar. The bar is held by a cord that makes a 90 ◦ angle with respect to bar and 50 ◦ with respect to wall. 3 2 m 6 k g 50 ◦ What is the magnitude of the horizontal force H x on the pivot? The acceleration of gravity is 9 . 8 m / s 2 ....
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problem_pdf - al zaabi(aka762 – OH-10 – bradley...

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