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What is the magnitude of the weight, W₁, of the wood block + cargo in terms of their mass, mı?

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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Concept explainers

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

2. Horizontal Case: Assume x & y equilibrium, & no sliding. Use magnitudes for parts a - g. Desired
answers are all symbolic formulas, numerical results will be arrived at later.)
wooden block
wooden board
m₂ g
pulley
slotted
mass
hanger
a. What is the magnitude of the weight, W₁, of the wood block + cargo in terms of their mass, mı?
mg
b. What is the magnitude of the hanging weight, W2, in terms of its mass, m2?
c. Use vertical equilibrium of the wood table to express the magnitude of the normal force on the wood
block, N, in terms of the magnitude of the weight, W₁, of the wood block + cargo.
d. Use vertical equilibrium of the hanging string to express the magnitude of the tension, T, in terms of
the magnitude of the hanging weight, W2.
e. Use horizontal equilibrium of the wood table to express the magnitude of the friction, f, in terms of
the magnitude of the tension, T.
f. Use the definitional equation to also express the magnitude of the friction, f, in terms of the
magnitude of the normal force, N.
g. Combine all of the above into a single equation & solve for (m2g) in terms of (mig),
(do not cancel the g's).
13 Dec 11

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