a force F 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 3.5 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.) (a) Number i Units (b) Number i Units (c) Number Units

a force F 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 3.5 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.) (a) Number i Units (b) Number i Units (c) Number Units

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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Chapter 07, Problem 024 Go In the figure, a horizontal force F, of magnitude 20.0 N is applied to a 3.17 kg book as the book slides a distanced = 0.93 m up a frictionless ramp at angle e = 30°. (a) During the displacement, what is the net work done on the book by Fa, the gravitational force on the book, and the normal force on the book? (b) If the book has zero kinetic energy at the start of the displacement, what is its speed at the end of the displacement? (a) Number Units (b) Number Units Click if you would like to Show Work for this question: Open Show Work Question Attempts: Unlimited SAVE FOR LATER SUBMIT ANSWER co search 6:56 PM ENG 3/30/2021 ASUS 13) t6 f9 home F10end pouse break fmpgup prt sc delete insert % 3 7. 8. 9. bocksp 10
A 45.9-kg box is being pushed a distance of 6.54 m across the floor by a force P whose magnitude is 168 N. The force P is parallel to the displacement of the box. The coefficient of kinetic friction is 0.208. Determine the work done on the box by (a) the applied force, (b) the friction force, (c) the normal force, and (d) by the force of gravity. Be sure to include the proper plus or minus sign for the work done by each force.
The figure shows three forces applied to a trunk that moves leftward by 3.01 mover a frictionless floor. The force magnitudes are F1- 4.50 N, F2 - 9.48 N, and F3- 2.85 N, and the indicated angle is e- 60°. (a) During the displacement, what is the net work done on the trunk by the three applied forces, the gravitational force, and the normal force? (b) Is there a net transfer of energy to or from the trunk? (c) Does the kinetic energy of the trunk increase or decrease? (a) Number i Units (b) (c)
A cord is used to vertically lower an initially stationary block of mass M = 8.5 kg at a constant downward acceleration of g/9. When the block has fallen a distance d = 4.9 m, find (a) the work done by the cord's force on the block, (b) the work done by the gravitational force on the block, (c) the kinetic energy of the block, and (d) the speed of the block. (Note : Take the downward direction positive)
I need help with part D!!
An engine can pull a train with a force of 2.95 × 10* N. It pulls 20 railcars each of mass 2.00×10' kg. The railcars are subject to rolling friction equal to 0.5% of their weight. (a) What is the work done by the engine on the train (not including the engine) when it starts from rest and moves 1.00 km? (b) What is the speed at 1.00 km?
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A chain of length 11 m and a mass per unit length of 0.6 kg/m initially lies coiled on the ground. Find the work done (in Joules) in raising one end of the chain to a height 15 m above the ground. Use g = 9.81 m/s² for the acceleration due to gravity. Write only the numerical answer in the box below. Do not include the units. To be graded correct, your answer must be correct to three significant digits. This question accepts numbers or formulas. Plot | Help | Switch to Equation Editor | Preview
A 40.5 kg box initially at rest is pushed 4.40 m along a rough, horizontal floor with a constant applied horizontal force of 125 N. If the coefficient of friction between box and floor is 0.300, find the following. (d) the work done by the gravitational force J(e) the change in kinetic energy of the box J(f) the final speed of the box m/s
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A cord is used to vertically lower an initially stationary block of mass M = 4.9 kg at a constant downward acceleration of g/7. When the block has fallen a distance d = 2.4 m, find (a) the work done by the cord's force on the block, (b) the work done by the gravitational force on the block, (c) the kinetic energy of the block, and (d) the speed of the block. (Note : Take the downward direction positive) (a) Number Units (b) Number Units (c) Number Units (d) Number Units