Lecture 4

Lecture 4 - Problem2.119 ThediskA

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Problem 2.119 The disk A is at the midpoint of the sloped surface. The string from A to B exerts a 0.2 lb force F on the disk. If you express F in terms of vector components parallel and normal to the sloped surface, what is the component normal to the surface?
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Problem 2.141 –Determine the minimum distance from point P to the lane defined by the three points nd plane defined by the three points A , B , and C .
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Forces, Equilibrium, and F.B.D.’s oces , qu b u ,a d s • Terminology – Line of Action – the straight line collinear with a force vector
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Forces, Equilibrium, and F.B.D.’s oces , qu b u ,a d s • Terminology – Systems of Forces – a set of forces which can be two ( coplanar ) or three-dimensional. oncurrent forces arallel forces eir Concurrent forces - their lines of action intersect at a point Parallel forces – their lines of action do not intersect
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Forces, Equilibrium, and F.B.D.’s oces , qu b u ,a d s • Terminology If the car and driver is – External Forces
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Lecture 4 - Problem2.119 ThediskA

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