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categoryالفيزياء schoolبكالوريوس event_available2026-07-15

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SD.L2.4-01 Sir Lance a Lost new draw bridge was designed poorly and stops at an angle of 20- below the hori- zontal. Sir Lost and his steed stop when their combined center of mass is 1.0 m from the end of the bridge. The bridge is 8.0 m long and has a mass of 2000 kg; the lift cable is attached to the bridge 5.0 m from the castle end and to a point 12 m above the bridge. Sir Lost's mass combined with his armor and steed is 1000 kg. (a) Determine the tension in the cable. (b) Find the horizontal and vertical force components acting on the bridge at the castle end.

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