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5. . A child pulls a wagon across the grass so that it accelerates using a force of 50 N at an angle of 42 degrees above the ground. The loaded wagon has a mass of 12 kg. If the coefficient of friction between the wagon and grass is 0.64. What is the acceleration of the wagon? Describe the motion of the wagon, (1.39 m/s², slowing down)

5. . A child pulls a wagon across the grass so that it accelerates using a force of 50 N at an angle of 42 degrees above the ground. The loaded wagon has a mass of 12 kg. If the coefficient of friction between the wagon and grass is 0.64. What is the acceleration of the wagon? Describe the motion of the wagon, (1.39 m/s², slowing down)

College Physics
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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1, Johnny lets a 0.5kg ball roll on the floor of the classroom. The ball gradually slows down. The coefficient of friction between the floor and the ball is 0.18. Draw a free body diagram and calculate the acceleration of the ball. a = -1.762 m/s² 2. A museum curator pulls a 1470 N sculpture across the museum floor, with an acceleration of 0.5m/s². If the coefficient of sliding friction between the floor and the sculpture is 0.57, calculate the mass, normal force, force of friction, and the force with which the curator pushes the sculpture. 1470N FN = Ff= -837.9 N FA = 912.9N 150 kg. m= 3, FN = 117,6 > The Rafflesia arnoldii found in Malaysia, is the largest flower in the world, one meter across and with a mass of 11 kg. If the coefficient of static friction between the flower and the forest floor is 0.76, find the minimum force you would need to apply to set the flower in motion. If you continue to push the flower with the same force calculated above, and if the coefficient of kinetic friction between the flower and the forest is 0.44, calculate the acceleration of the flower. How far does the flower move in 3.75 seconds? Fmax = 81.93 N x = 22.08 m 107.8N 5. 6e. A little boy pushes a 12 kg. box ot library books with a constant velocity along the side walk by applying a horizontal force of 96N. Draw a free body diagram for the box. Calculate the weight, Normal force, frictional force and coefficient of friction between the box and the sidewalk. Fg = 117.6 Ff = 96N, M = 82 7. a = 3.14 m/s² A child pulls a wagon across the grass so that it accelerates using a force of 50 N at an angle of 42 degrees above the ground. The loaded wagon has a mass of 12 kg. If the coefficient of friction between the wagon and grass is 0.64. What is the acceleration of the wagon? Describe the motion of the wagon, (1.39 m/s², slowing down) A 9.5 kg crate is pushed up a 30 degree incline using a force of 80 N. If this causes the crate to accelerate at a rate of 1.64 m/s² up the incline, what is the coefficient of friction between the incline and the crate?(0.22) A 1000 kg car is driving down a 10 degree incline when the driver slams on the brakes. The brakes supply a force of 8000 N in addition to the friction. If the coefficient of friction is 0.8, what is the acceleration of the car?(14.0 m/s², up the incline)
Transcribed Image Text:1, Johnny lets a 0.5kg ball roll on the floor of the classroom. The ball gradually slows down. The coefficient of friction between the floor and the ball is 0.18. Draw a free body diagram and calculate the acceleration of the ball. a = -1.762 m/s² 2. A museum curator pulls a 1470 N sculpture across the museum floor, with an acceleration of 0.5m/s². If the coefficient of sliding friction between the floor and the sculpture is 0.57, calculate the mass, normal force, force of friction, and the force with which the curator pushes the sculpture. 1470N FN = Ff= -837.9 N FA = 912.9N 150 kg. m= 3, FN = 117,6 > The Rafflesia arnoldii found in Malaysia, is the largest flower in the world, one meter across and with a mass of 11 kg. If the coefficient of static friction between the flower and the forest floor is 0.76, find the minimum force you would need to apply to set the flower in motion. If you continue to push the flower with the same force calculated above, and if the coefficient of kinetic friction between the flower and the forest is 0.44, calculate the acceleration of the flower. How far does the flower move in 3.75 seconds? Fmax = 81.93 N x = 22.08 m 107.8N 5. 6e. A little boy pushes a 12 kg. box ot library books with a constant velocity along the side walk by applying a horizontal force of 96N. Draw a free body diagram for the box. Calculate the weight, Normal force, frictional force and coefficient of friction between the box and the sidewalk. Fg = 117.6 Ff = 96N, M = 82 7. a = 3.14 m/s² A child pulls a wagon across the grass so that it accelerates using a force of 50 N at an angle of 42 degrees above the ground. The loaded wagon has a mass of 12 kg. If the coefficient of friction between the wagon and grass is 0.64. What is the acceleration of the wagon? Describe the motion of the wagon, (1.39 m/s², slowing down) A 9.5 kg crate is pushed up a 30 degree incline using a force of 80 N. If this causes the crate to accelerate at a rate of 1.64 m/s² up the incline, what is the coefficient of friction between the incline and the crate?(0.22) A 1000 kg car is driving down a 10 degree incline when the driver slams on the brakes. The brakes supply a force of 8000 N in addition to the friction. If the coefficient of friction is 0.8, what is the acceleration of the car?(14.0 m/s², up the incline)
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