EBK PHYSICS FOR SCIENTISTS AND ENGINEER
EBK PHYSICS FOR SCIENTISTS AND ENGINEER
6th Edition
ISBN: 9781319321710
Author: Mosca
Publisher: VST
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Chapter 4, Problem 59P

(a)

To determine

The tension in the cable and the normal force exerted by the incline.

(b)

To determine

The tension as a function of θ and m then check the result for the plausibility in the special cases of θ=0° and θ=90° .

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Do Chapter 12, Problem 6, with these numbers which I've decided to express in pounds and feet, English units.  Sam and Joe carry a beam, walking to the right.  Calculate the force that Sam exerts, in pounds. The beam's weight is 109 lb. The beam's length is 21 ft. Sam is 1 ft from the back. Joe is 2 ft from the front.
An object of mass 2.8 kg is suspended from a ceiling by two cords that each make an angle of magnitude 38.59 degrees with the ceiling. If the magnitudes of the tensions In the two cords are the same. what is the magnitude of the tension force in just one of the cords (in N)? (My answer was 21.996 rounded to 22. I did T=(2.8)(9.8)/2Sin(38.59))
solve the a and b given in the image.

Chapter 4 Solutions

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