Suppose two children push horizontally, but in exactly opposite directions, on a wagon containing a third child. The first child exerts a force of F₁ = 75.0 N, the second a force of F₂ = 93.0 N, friction is 12.0 N, and the mass of the third child plus wagon is 20.0 kg. (a) What is the system of interest if the acceleration of the child in the wagon is to be calculated? (Select all that apply.) the child in the wagon the children outside the wagon the wagon (b) Which of the following diagrams correctly represents the free body diagram for the situation described here? F₁ f N W N F₂ F₁ (d) What would the acceleration (in m/s²) be if friction is 18.0 N? 0 m/s² f N W F₂ (c) Calculate the acceleration (in m/s2). 0 X What is the net force acting on the system? Did you consider the appropriate direction of the friction force? m/s² F₂ f N W F₁
Suppose two children push horizontally, but in exactly opposite directions, on a wagon containing a third child. The first child exerts a force of F₁ = 75.0 N, the second a force of F₂ = 93.0 N, friction is 12.0 N, and the mass of the third child plus wagon is 20.0 kg. (a) What is the system of interest if the acceleration of the child in the wagon is to be calculated? (Select all that apply.) the child in the wagon the children outside the wagon the wagon (b) Which of the following diagrams correctly represents the free body diagram for the situation described here? F₁ f N W N F₂ F₁ (d) What would the acceleration (in m/s²) be if friction is 18.0 N? 0 m/s² f N W F₂ (c) Calculate the acceleration (in m/s2). 0 X What is the net force acting on the system? Did you consider the appropriate direction of the friction force? m/s² F₂ f N W F₁
College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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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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Transcribed Image Text:Suppose two children push horizontally, but in exactly opposite directions, on a wagon containing a third child. The first child exerts a force of F₁ = 75.0 N, the second a force of
F₂ = 93.0 N, friction is 12.0 N, and the mass of the third child plus wagon is 20.0 kg.
(a) What is the system of interest if the acceleration of the child in the wagon is to be calculated? (Select all that apply.)
the child in the wagon
the children outside the wagon
the wagon
(b) Which of the following diagrams correctly represents the free body diagram for the situation described here?
O
F₁
F₁
f
N
W
LN
F₂
F₂
O
F₁
(d) What would the acceleration (in m/s²) be if friction is 18.0 N?
0
m/s²
f
N
W
F₂
(c) Calculate the acceleration (in m/s²).
0
X
What is the net force acting on the system? Did you consider the appropriate direction of the friction force? m/s²
F₂
f
N
W
F₁
Expert Solution
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a)
To determine the acceleration of the child in the wagon, the wagon and the child in the wagon are very important.
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