1. A uniform crane arm (length L) is attached to the rest of the crane by a frictionless axle at its lower end, and it is at an angle of 55.0⁰ from vertical (see figure). It is held in place by a cable that is attached 3.00 meters from its upper end, at an angle of 25.0° from the crane arm. A 2270-N load of bricks hangs from the upper end of the beam, at the end of a light cord that is 2.20 meters long. The tension in the cable is 5750 N and the crane arm weighs 1520 N. a. Find the length of the crane arm (L). b. Find vertical component of the force that the axle exerts on the beam (magnitude and direction). c. Find the horizontal component of the force that the axle exerts on the beam (magnitude and direction). Cable 25° Axle 55° 3.0 m- 2.2-m cord Bricks
1. A uniform crane arm (length L) is attached to the rest of the crane by a frictionless axle at its lower end, and it is at an angle of 55.0⁰ from vertical (see figure). It is held in place by a cable that is attached 3.00 meters from its upper end, at an angle of 25.0° from the crane arm. A 2270-N load of bricks hangs from the upper end of the beam, at the end of a light cord that is 2.20 meters long. The tension in the cable is 5750 N and the crane arm weighs 1520 N. a. Find the length of the crane arm (L). b. Find vertical component of the force that the axle exerts on the beam (magnitude and direction). c. Find the horizontal component of the force that the axle exerts on the beam (magnitude and direction). Cable 25° Axle 55° 3.0 m- 2.2-m cord Bricks
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter14: Static Equilibrium, Elasticity, And Fracture
Section: Chapter Questions
Problem 31PQ: A wooden door 2.1 m high and 0.90 m wide is hung by two hinges 1.8 m apart. The lower hinge is 15 cm...
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