ceiling T hinge floor 110 cm The picture shows a trap door in the floor of a room. The 24.0-kg door, shown in black, is 110 cm long and is hinged at its left end. A pulley is attached to the door 20 cm from the end opposite the hinge. A second pulley is attached to the ceiling. A rope is attached to the ceiling at onę end and passes through the pulleys as shown. Assume the rope and pulleys to be massless and frictionless. What is the minimum tension force T required to lift the door? 87 N 72 N 150 N 120 N 250 N
ceiling T hinge floor 110 cm The picture shows a trap door in the floor of a room. The 24.0-kg door, shown in black, is 110 cm long and is hinged at its left end. A pulley is attached to the door 20 cm from the end opposite the hinge. A second pulley is attached to the ceiling. A rope is attached to the ceiling at onę end and passes through the pulleys as shown. Assume the rope and pulleys to be massless and frictionless. What is the minimum tension force T required to lift the door? 87 N 72 N 150 N 120 N 250 N
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Transcribed Image Text:ceiling
hinge
floor
110 cm
The picture shows a trap door in the floor of a room. The 24.0-kg
door, shown in black, is 110 cm long and is hinged at its left end. A
pulley is attached to the door 20 cm from the end opposite the
hinge. A second pulley is attached to the ceiling. A rope is attached
to the ceiling at onę end and passes through the pulleys as shown.
Assume the rope and pulleys to be massless and frictionless.
What is the minimum tension force T required to lift the door?
87 N
72 N
150 N
120 N
O250 N
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