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The drawing shows an A-shaped stepladder. Both sides of the ladder are
equal in length. This ladder is standing on a frictionless horizontal surface,
and only the crossbar (which has a negligible mass) of the "A" keeps the
ladder from collapsing. The ladder is uniform and has a mass of 20.0 kg.
Determine the tension in the crossbar of the ladder.
1.00 m
Answer.
Check
30.0°
Crossbar
4.00 m
N

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