Sir Lost-a-Lot dons his armor and sets out of the castle on his trusty steed Tri
ID: 1325881 • Letter: S
Question
Sir Lost-a-Lot dons his armor and sets out of the castle on his trusty steed Tripper in his quest to rescue fair damsels from dragons. Unfortunately his valiant aide Doubtless lowered the drawbridge too far and finally stopped it 12 degrees below the horizontal. Lost-a-Lot screeches to a stop when the center of mass for him and his steed is 0.73 m from the end of the bridge. The bridge is 7.8 m long, and has a mass of 1200kg. The lift cable is attached to the bridge 3.2 m from the castle end and to the parapets 19m above the bridge. Lost-a-Lot's mass combines with his steed is 650 kg. Gravity is 9.8.
A) Determine the tension(T) in the cable. Answer in units of kN.
B) Determine the magnitude of the horizontal force component acting on the bridge at the castle end. Answer in kN.
C) Determine the magnitude of the vertical force component acting on the bridge at the castle end. Answer in kN
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Explanation / Answer
The angle between the bridge and the castle is 90