# Question X Book a Flight: Best Join conversation Course Home X A-Z Databases whitworth Library Pirate Port Public Fomis of appeal in https://openvellum.ecollege.com/course.html?courseld-155442638HepID=c5fa803dae2fe486ce2b2d26e3f885b8#10001 Course Home HW 18 1 of 6 Dr. Z. recommends problem 1 Review As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. There is no one around to help, so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley You pull up on the rope to lift the box. (Figure 1) Part A Once you have pulled hard enough to start the box moving upward, what is the magnitude F of the upward force you must apply to the rope to start raising the box with constant velocity? Use g for the magnitude of the acceleration due to gravity and neglect friction forces. Express the magnitude of the force in terms of m, the mass of the box. View Available Hint(s) VA F- Figure 1 of 1 Request Answer Submit Part B Complfete previous part(s) Provide Feedback Next> .masteringphysics.com/myct/itemView?assignmentProblemID=120999088 Type here to search 21:10 30/10/2019 SUs

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Transcribed Image Text: X Book a Flight: Best Join conversation Course Home X A-Z Databases whitworth Library Pirate Port Public Fomis of appeal in https://openvellum.ecollege.com/course.html?courseld-155442638HepID=c5fa803dae2fe486ce2b2d26e3f885b8#10001 Course Home HW 18 1 of 6 Dr. Z. recommends problem 1 Review As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. There is no one around to help, so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley You pull up on the rope to lift the box. (Figure 1) Part A Once you have pulled hard enough to start the box moving upward, what is the magnitude F of the upward force you must apply to the rope to start raising the box with constant velocity? Use g for the magnitude of the acceleration due to gravity and neglect friction forces. Express the magnitude of the force in terms of m, the mass of the box. View Available Hint(s) VA F- Figure 1 of 1 Request Answer Submit Part B Complfete previous part(s) Provide Feedback Next> .masteringphysics.com/myct/itemView?assignmentProblemID=120999088 Type here to search 21:10 30/10/2019 SUs
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Transcribed Image Text: X Book a Flight: Best Join conversation Course Home X A-Z Databases whitworth Library Pirate Port Public Fomis of appeal in https://openvellum.ecollege.com/course.html?courseld-155442638HepID=c5fa803dae2fe486ce2b2d26e3f885b8#10001 Course Home HW 18 1 of 6 Dr. Z. recommends problem 1 Review As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. There is no one around to help, so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley You pull up on the rope to lift the box. (Figure 1) Part A Once you have pulled hard enough to start the box moving upward, what is the magnitude F of the upward force you must apply to the rope to start raising the box with constant velocity? Use g for the magnitude of the acceleration due to gravity and neglect friction forces. Express the magnitude of the force in terms of m, the mass of the box. View Available Hint(s) VA F- Figure 1 of 1 Request Answer Submit Part B Complfete previous part(s) Provide Feedback Next> .masteringphysics.com/myct/itemView?assignmentProblemID=120999088 Type here to search 21:10 30/10/2019 SUs