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

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

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.
Find the length of the crane arm (L).
Find vertical component of the force that the axle exerts
on the beam (magnitude and direction).
a.
b.
c. Find the horizontal component of the force that the axle
exerts on the beam (magnitude and direction).
Cable
Axle
25°
55°
3.0 m-
2.2-m
cord
Bricks

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