Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts a force of 74.0 N, the second a force of 95.0 N, friction is 18.0 N, and the mass of the third child plus wagon is 23.0 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 children outside the wagon the child in the wagon the wagon (b) Draw a free-body diagram, including all forces acting on the system. N F₁ N 7 W

Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts a force of 74.0 N, the second a force of 95.0 N, friction is 18.0 N, and the mass of the third child plus wagon is 23.0 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 children outside the wagon the child in the wagon the wagon (b) Draw a free-body diagram, including all forces acting on the system. N F₁ N 7 W

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Description: 6.rises/last?dep=284331910UpdateDETAILSSuppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts a force of 74.0 N, the second a force of 95.0 N, friction is 18.0 N, and themass o

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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A block of mass m,- 13.4 kg is on a frictionless table to the left of a second block of mass m,- 21.7 kg, attached by a horizontal string (see the figure below). HINT F (a) If a horizontal force of 2.13 x 102 N is exerted on the block m, in the positive x-direction, use the system approach to find the acceleration (in m/s) of the two blocks. m/s2 (b) What is the tension (in N) in the string connecting the blocks? N Need Help? Read It Watch
Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts a force of 75.0 N, the second a force of 92.0 N, friction is 12.0 N, and the mass of the third child plus wagon is 24.0 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 children outside the wagon the wagon the child in the wagon (b) Draw a free body diagram, including the weight and all other forces acting on the system. (Do this on paper. Your instructor may ask you to turn in this diagram.) (c) Calculate the acceleration. m/s2 (d) What would the acceleration be if friction is 17.0 N?
Problem 4( is m = 3 kg and the mass of block two is m, = 8 kg. A force is applied on m, to start the motion of block two knowing that block 1 doesn't move. The coefficient of static friction for all surfaces is given as 0.6. (Take g=9.8 m/s). Two-block system is given below. The mass of block one Tension force ma Fapplied ma a)( Choose the correct answer for the following question. How many forces along the x-axis are acting on block 1 with mass m,? How many forces along the y-axis are acting on block 1 with mass m? How many forces along the x-axis are acting on block 2 with mass m? How many forces along the y-axis are acting on block 2 with mass m2? Calculate the magnitude of normal force |F Ni| exerted by block 2 b) on block 1. Calculate the magnitude of the maximum static friction force |Fal c) ( created between block I and block 2. Calculate the magnitude of the tension force |Fr| exerted by d) string attached to block 1. N )Calculate the magnitude of normal force | F N21 applied…
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
Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts a force of 70.0 N, the second a force of 87.0 N, friction is 15.0 N, and the mass of the third child plus wagon is 23.0 kg. What is the system of interest if the acceleration of the child in the wagon is to be calculated? (Select all that apply.) the wagon O the children outside the wagon O the child in the wagon Draw a free-body diagram, including all forces acting on the system. F₁ N † W F₂ Calculate the acceleration in m/s2. (Enter the magnitude.) m/s² F₁ N f W What would the acceleration be (in m/s2) if friction were 17.0 N? (Enter the magnitude.) m/s² F₂ F₁ f N W F₂ F₁ F₂
Find the acceleration and tension by hand if the coefficient of friction is 0.2. 1. θ=20°, m1=2kg, m2=3kg, and μk=0.2 2. θ=60°, m1=5kg, m2=3kg, and μk=0.2
A person is pushing two boxes placed side by side with each other. What is the acceleration caused by the applied force if the net force is 243.77 N, the coefficient of kinetic friction of the boxes is 0.074 and the sum of the mass of the boxes is 98.92 kg? Is it possible to have one of the boxes generate an applied force of149.34 N, if yes, what is the mass of the other box?(with illustration)
Problem 4( is m = 3 kg and the mass of block two is m, = 8 kg. A force is applied on m, to start the motion of block two knowing that block 1 doesn't move. The coefficient of static friction for all surfaces is given as 0.6. (Take g=9.8 m/s). Two-block system is given below. The mass of block one Tension force ma Fapplied ma a) ( Choose the correct answer for the following question. How many forces along the x-axis are acting on block 1 with mass m,? How ar r ed by )Calculate the magnitude of the maximum static friction force |F2l exerted by the ground surface on block 2. ) (5 needed just to start the motion of the block 2. s)Calculate the magnitude of the applied force |Fapplied that is |Fapplied
Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts a force of 75.0 N, the second a force of 92.0 N, friction is 12.0 N, and the mass of the third child plus wagon is 24.0 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 children outside the wagonthe wagonthe child in the wagon (b) Draw a free body diagram, including the weight and all other forces acting on the system. (Do this on paper. Your instructor may ask you to turn in this diagram.) (c) Calculate the acceleration. m/s2 (d) What would the acceleration be if friction is 17.0 N?
Suppose that down at the docks, Popeye is pulling the objects shown below with a force of 985[N] in the horizontal direction, as shown below. Mass #2 (150.0[kg]) is connected to Mass #1 (50.0[kg]) by a single cable that is passed over an ideal pulley. The coefficient of kinetic friction between Mass #2 and the ledge is 0.254. He successfully moves the objects after they were at rest. What is the magnitude of the gravitational force on Mass #1? Express your answer in units of Newtons. What is the magnitude of the gravitational force on Mass #2? Express your answer in units of Newtons. What is the magnitude of the tension in the rope connecting the objects? Express your answer in units of Newtons. What is the magnitude of the acceleration of the objects? Express your answer in units of m/s2.
As shown, the pulleys and the cord are light, all surfaces are frictionless, and the cord does not stretch. (a) How does the acceleration of block 1 compare with the acceleration of block 2? Explain your reasoning. (b) Themass of block 2 is 1.30 kg. Find its acceleration as it depends on the mass m1 of block 1. (c) What If? What does the result of part (b) predict if m1 is very much less than 1.30 kg? (d) What does the result of part (b) predict if m1 approaches infinity? (e) In this last case, what is the tension in the cord? (f) Could you anticipate the answers to parts (c), (d), and (e) without first doing part (b)? Explain.
Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts a force of 75.0 N, the second a force of 98.0 N, friction is 12.0 N, and the mass of the third child plus wagon is 21.0 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 wagon the child in the wagon the children outside the wagon (b) Draw a free body diagram, including the weight and all other forces acting on the system. (c) Calculate the acceleration.(d) What would the acceleration be if friction is 23.0 N?