In the figure, a cord runs around two massless, frictionless pulleys. A canister with mass m = 36 kg hangs from one pulley, and you exert a force on the free end of the cord. (a) What must be the magnitude of F if you are to lift the canister at a constant speed? (b) To lift the canister by 2.2 cm, how far must you pull the free end of the cord? During that lift, what is the work done on the canister by (c) your force (via the cord) and (d) the gravitational force? (Hint: When a cord loops around a pulley as shown, it pulls on the pulley with a net force that is twice the tension in the cord.) FY
In the figure, a cord runs around two massless, frictionless pulleys. A canister with mass m = 36 kg hangs from one pulley, and you exert a force on the free end of the cord. (a) What must be the magnitude of F if you are to lift the canister at a constant speed? (b) To lift the canister by 2.2 cm, how far must you pull the free end of the cord? During that lift, what is the work done on the canister by (c) your force (via the cord) and (d) the gravitational force? (Hint: When a cord loops around a pulley as shown, it pulls on the pulley with a net force that is twice the tension in the cord.) FY
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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Transcribed Image Text:In the figure, a cord runs around two massless, frictionless pulleys. A canister with mass m = 36 kg hangs from one pulley, and you exert
a force on the free end of the cord. (a) What must be the magnitude of F if you are to lift the canister at a constant speed? (b) To lift
the canister by 2.2 cm, how far must you pull the free end of the cord? During that lift, what is the work done on the canister by (c) your
force (via the cord) and (d) the gravitational force? (Hint: When a cord loops around a pulley as shown, it pulls on the pulley with a net
force that is twice the tension in the cord.)
K
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Step 1 : Part (a) and Part (b)
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