College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Newton’s Third Law of Motion
The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”
Question
4.2 Three point masses lie at the corners of an equilateral triangle whose sides have length 1.00 m. A 5.00 kg mass is located at the origin of the coordinate system, a 10.0 kg mass lies on the positive x-axis, and a 15.0 kg mass is in the first quadrant of the xy-plane. (a) Calculate the coordinates of the center-of-mass (CM) of the system. (b) How far is the CM from the origin, and what angle does it make with respect to the x-axis?
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Transcribed Image Text:4.2 Three point masses lie at the corners of an equilateral triangle whose sides have length 1.00 m. A 5.00 kg mass is located at the origin of the coordinate system, a 10.0 kg mass lies on the positive x-axis, and a 15.0 kg mass is in the first quadrant of the xy-plane. (a) Calculate the coordinates of the center-of-mass (CM) of the system. (b) How far is the CM from the origin, and what angle does it make with respect to the x-axis?
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Step 1

Given,

 masses m1, m2 and m3 at the corners of an equilateral triangle

 Sides of equilateral triangle= 1 m

 Physics homework question answer, step 1, image 1

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