EBK COLLEGE PHYSICS
3rd Edition
ISBN: 9780321989246
Author: Knight
Publisher: PEARSON CO
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Textbook Question
Chapter 5, Problem 19CQ
For Questions 17 through 20, determine the tension in the rope at the point indicated with a dot.
• All objects are at rest.
• The strings and pulleys are massless, and the pulleys are frictionless.
19.
Figure Q5.19
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Determine the tension in the rope at the point indicated with a dot.• All objects are at rest.• The strings and pulleys are massless, and the pulleys are frictionless.
Determine the tension in the rope at the point indicated with a dot.• All objects are at rest.• The strings and pulleys are massless, and the pulleys are frictionless.
1. Imagine a skier sliding down a hill. Draw a simplified "stick figure" type sketch of the situation, and a free-body (force) diagram of
the skier by hand. Assume for now that there is no friction between the skis and the hill.
Use a ruler! Make sure that your axes and force vectors are straight lines and draw your force vectors proportional to their
magnitudes. You can take a picture of your force diagram with your phone and upload it using the image upload tool on the menu
above your answer box.
1. the normal force on an object by a surface is always perpendicular to the surface.
2. the force of gravity is always directly downward.
Hint:
3. use the particle model to represent the skier as a "dot"
4. Label your coordinate axes and the forces
5. Use the parallelogram rule to show the net force acting on the skier. Which way does it point? Is that where it should
point? If not adjust the lengths of the force vectors so that their sum points in the direction of the acceleration!
Chapter 5 Solutions
EBK COLLEGE PHYSICS
Ch. 5 - An object is subject to two forces that do not...Ch. 5 - Are the objects described here in static...Ch. 5 - What forces are acting on you right now? What net...Ch. 5 - Decide whether each of the following is true or...Ch. 5 - An astronaut takes his bathroom scale to the moon...Ch. 5 - A light block of mass m and a heavy block of mass...Ch. 5 - a. Can the normal force on an object be directed...Ch. 5 - A ball is thrown straight up. Taking the drag...Ch. 5 - You are going sledding with your friends, sliding...Ch. 5 - Suppose you are holding a box in front of you and...
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A 0.60 kg bullfrog is sitting at rest on a...Ch. 5 - A 23 kg child goes down a straight slide inclined...Ch. 5 - Two workers are sliding a 300 kg crate across the...Ch. 5 - A 4000 kg truck is parked on a 7.0 slope. How big...Ch. 5 - A 1000 kg car traveling at a speed of 40 m/s skids...Ch. 5 - A stubborn 120 kg pig sits down and refuses to...Ch. 5 - It is friction that provides the force for a car...Ch. 5 - The rolling resistance for steel on steel is quite...Ch. 5 - What is the minimum downward force on the box in...Ch. 5 - What is the drag force on a 1.6-m-wide, 1.4-m-high...Ch. 5 - A 22-cm-diameter bowling ball has a terminal speed...Ch. 5 - Running on a treadmill is slightly easier than...Ch. 5 - A 75 kg skydiver can be modeled as a rectangular...Ch. 5 - The air is less dense at higher elevations, so...Ch. 5 - A 1000 kg car pushes a 2000 kg truck that has a...Ch. 5 - A 2200 kg truck has put its front bumper against...Ch. 5 - Blocks with masses of 1.0 kg, 2.0 kg, and 3.0 kg...Ch. 5 - What is the tension in the rope of Figure P5.42...Ch. 5 - A 2.0-m-long, 500 grope pulls a 10 kg block of ice...Ch. 5 - Each of 100 identical blocks sitting on a...Ch. 5 - Two blocks on a frictionless table, A and B, are...Ch. 5 - A 500 kg piano is being lowered into position by a...Ch. 5 - Dana has a sports medal suspended by a long ribbon...Ch. 5 - Figure P5.49 shows the velocity graph of a 2.0 kg...Ch. 5 - Your forehead can withstand a force of about 6.0...Ch. 5 - A 50 kg box hangs from a rope. 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To...Ch. 5 - A 20,000 kg rocket has a rocket motor that...Ch. 5 - Youve always wondered about the acceleration of...Ch. 5 - A 23 kg child goes down a straight slide inclined...Ch. 5 - An impala is an African antelope capable of a...Ch. 5 - Josh starts his sled at the top of a 3.0-m-high...Ch. 5 - The drag force is an important fact of life for...Ch. 5 - A wood block, after being given a starting push,...Ch. 5 - Researchers often use force plates to measure the...Ch. 5 - A person with compromised pinch strength in his...Ch. 5 - Its possible for a determined group of people to...Ch. 5 - A 1.0 kg wood block is pressed against a vertical...Ch. 5 - Two blocks are at rest on a frictionless incline,...Ch. 5 - Running indoors on a treadmill is slightly easier...Ch. 5 - Two identical 2.0 kg blocks are stacked as shown...Ch. 5 - A wood block is sliding up a wood ramp. 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