You construcs a shelf using a wooden plank with a width of 25 cm, a pair...
You construcs a shelf using a wooden plank with a width of 25 cm, a pair of door hinges attatched to the wall and a cable from a bicycle lock. The shelf has a load of 18 kg centered 15 cm from the wall and the cable is attatched 20 cm from the wall and makes an angle of 45 degrees with the wall.
A) What is the tension in the cable?
B) What is the torque about the hinges exerted bt the wirhgt of the shelf and its contents?
C) What is the horizontal component of the force on the pair of hinges from the shelf?
D) What is the verticle component of the force on the pair of hinges from the shelf?
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You construcs a shelf using a wooden plank with a width of 25
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