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
**Problem Statement:** Susan's 13.0 kg baby brother Paul sits on a mat. Susan pulls the mat across the floor using a rope that angles 30.0° above the floor. The tension is a constant 32.0 N and the coefficient of friction is 0.180. **Part A:** Use work and energy to find Paul's speed after being pulled 2.60 m. Express your answer with the appropriate units.
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Transcribed Image Text:**Problem Statement:** Susan's 13.0 kg baby brother Paul sits on a mat. Susan pulls the mat across the floor using a rope that angles 30.0° above the floor. The tension is a constant 32.0 N and the coefficient of friction is 0.180. **Part A:** Use work and energy to find Paul's speed after being pulled 2.60 m. Express your answer with the appropriate units.
Expert Solution
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Step 1: Given and FBD:

Physics homework question answer, step 1, image 1

M equals 13 space k g theta equals 30 to the power of o F equals 32 space N mu equals 0.18 space d equals 2.6 space m

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