The principles of a differential chain block are indicated schematically in the figure. Determine the magnitude of force P needed to support the 800-N force. Also compute the distance x where the cable must be at

1. 

pg6-10a

The principles of a differential chain block are indicated schematically in the figure. Determine the magnitude of force P needed to support the 800-N force. Also compute the distance x where the cable must be attached to bar AB so the bar remains horizontal. All pulleys have a radius of 60 mm.
[A]. P = 80 N, x = 240 mm
[B]. P = 80 N, x = 180 mm
[C]. P = 40 N, x = 180 mm
[D]. P = 40 N, x = 240 mm

Answer: Option D

Explanation:

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