Physics, Books a la Carte Edition (5th Edition)
5th Edition
ISBN: 9780134020853
Author: James S. Walker
Publisher: PEARSON
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Chapter 6, Problem 87PP
Referring to Example 6-15 (a) At what speed will the
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The force of the quadriceps (Fq) and force of the patellar tendon (Fp) is identical (i.e., 1000 N each). In the figure below angle in blue is Θ and the in green is half Θ (i.e., Θ/2). A) Calculate the patellar reaction force (i.e., R resultant vector is the sum of the horizontal component of the quadriceps and patellar tendon force) at the following joint angles: you need to provide a diagram showing the vector and its components for each part. a1) Θ = 160 degrees, a2) Θ = 90 degrees. NOTE: USE DO NOT USE LAW OF COSINES, NO COMPLICATED ALGEBRAIC EQUATIONS OR ANYTHING ELSE, ETC. Question A has 2 parts!
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The force of the quadriceps (Fq) and force of the patellar tendon (Fp) is identical (i.e., 1000 N each). In the figure below angle in blue is Θ and the in green is half Θ (i.e., Θ/2). A) Calculate the patellar reaction force (i.e., R resultant vector is the sum of the horizontal component of the quadriceps and patellar tendon force) at the following joint angles: you need to provide a diagram showing the vector and its components for each part. a1) Θ = 160 degrees, a2) Θ = 90 degrees. NOTE: USE ONLY TRIGNOMETRIC FUNCTIONS (SIN/TAN/COS, NO LAW OF COSINES, NO COMPLICATED ALGEBRAIC EQUATIONS OR ANYTHING ELSE, ETC. Question A has 2 parts!
Chapter 6 Solutions
Physics, Books a la Carte Edition (5th Edition)
Ch. 6.1 - A block rests on a rough, horizontal surface, as...Ch. 6.2 - When a mass is attached to a certain spring, the...Ch. 6.3 - Suppose the tension in the clothesline in Quick...Ch. 6.4 - Three boxes are connected by ropes and pulled...Ch. 6.5 - A system consists of an object with mass m and...Ch. 6 - A clothesline always sags a little, even if...Ch. 6 - In the Jurassic Park sequel, The Lost World, a man...Ch. 6 - When a traffic accident is investigated, it is...Ch. 6 - In a car with rear-wheel drive, the maximum...Ch. 6 - A train typically requires a much greater distance...
Ch. 6 - Give some everyday examples of situations in which...Ch. 6 - At the local farm, you buy a flat of strawberries...Ch. 6 - It is possible to spin a bucket of water in a...Ch. 6 - Water sprays off a rapidly turning bicycle wheel....Ch. 6 - Can an object be in translational equilibrium if...Ch. 6 - Prob. 11CQCh. 6 - The gravitational attraction of the Earth is only...Ch. 6 - A popular carnival ride has passengers stand with...Ch. 6 - Referring to Question 13, after the cylinder...Ch. 6 - Your car is stuck on an icy side street. Some...Ch. 6 - The parking brake on a car causes the rear wheels...Ch. 6 - BIO The foot of your average gecko is covered with...Ch. 6 - Discuss the physics involved in the spin cycle of...Ch. 6 - The gas pedal and the brake pedal are capable of...Ch. 6 - In the movie 2001: A Space Odyssey, a rotating...Ch. 6 - When rounding a corner on a bicycle or a...Ch. 6 - Predict/Explain You push two identical bricks...Ch. 6 - Predict/Explain Two drivers traveling side-by-side...Ch. 6 - A 1.8-kg block slides on a horizontal surface with...Ch. 6 - A child goes down a playground slide with an...Ch. 6 - What is the minimum horizontal force F needed to...Ch. 6 - What is the minimum horizontal force F needed to...Ch. 6 - The three identical boxes shown in Figure 6-33...Ch. 6 - To move a large crate across a rough floor, you...Ch. 6 - Predict/Calculate A 37-kg crate is placed on an...Ch. 6 - Coffee To Go A person places a cup of coffee on...Ch. 6 - A mug rests on an inclined surface, as shown in...Ch. 6 - Predict/Calculate Force Times Distance At the...Ch. 6 - Prob. 13PCECh. 6 - A certain spring has a force constant k. (a) If...Ch. 6 - A certain spring has a force constant k. (a) If...Ch. 6 - Pulling up on a rope you lift a 7.27-kg bucket of...Ch. 6 - When a 9.09-kg mass is placed on top of a vertical...Ch. 6 - Predict/Calculate A backpack full of books...Ch. 6 - Two springs, with force constants k1= 150N/m and...Ch. 6 - Predict/Calculate Illinois Jones is being pulled...Ch. 6 - Predict/Calculate A spring with a force constant...Ch. 6 - A spring is suspended vertically from the ceiling...Ch. 6 - Mechanical Advantage The pulley system shown in...Ch. 6 - Pulling the string on a bow back with a force of...Ch. 6 - In Figure 6-42 we see two blocks connected by a...Ch. 6 - BIO Traction After a skiing accident, your leg is...Ch. 6 - Two blocks are connected by a string, as shown in...Ch. 6 - Predict/Calculate The system shown in Figure 6-45...Ch. 6 - Predict/Explain (a) Referring to the hanging...Ch. 6 - BIO Spiderweb Forces An orb-weaver spider sits in...Ch. 6 - A 0.15-kg ball is placed in a shallow wedge with...Ch. 6 - Predict/Calculate A picture hangs on the wall...Ch. 6 - Predict/Calculate You want to nail a 1.6-kg board...Ch. 6 - Prob. 34PCECh. 6 - In Example 6-13 (Connected Blocks), suppose m1 and...Ch. 6 - Predict/Explain Suppose m1 and m2 in Example 6-14...Ch. 6 - Three boxes of masses m, 2m, and 3m are connected...Ch. 6 - Find the acceleration of the masses shown in...Ch. 6 - Predict/Calculate (a) If the hanging mass m3 in...Ch. 6 - Two blocks are connected by a string, as shown in...Ch. 6 - Predict/Calculate A 3 50-kg block on a smooth...Ch. 6 - Predict/Calculate A 7.7-N force pulls horizontally...Ch. 6 - Predict/Calculate (a) Find the magnitude of the...Ch. 6 - A car drives with constant speed on an elliptical...Ch. 6 - A puck attached to a string undergoes circular...Ch. 6 - BIO Bubble Net Fishing Humpback whales sometimes...Ch. 6 - When you take your 1900-kg car out for a spin, you...Ch. 6 - BIO A Human Centrifuge To test the effects of high...Ch. 6 - A car goes around a curve on a road that is banked...Ch. 6 - Clearview Screen Large ships often have circular...Ch. 6 - Predict/Calculate (a) As you ride on a Ferris...Ch. 6 - Driving in your car with a constant speed of v =...Ch. 6 - CE If you weigh yourself on a bathroom scale at...Ch. 6 - CE BIO Maneuvering a Jet Humans lose consciousness...Ch. 6 - CE BIO Gravitropism As plants grow, they tend to...Ch. 6 - BIO Human-Powered Centrifuge One of the hazards of...Ch. 6 - Predict/Calculate A 9 3-kg box slides across the...Ch. 6 - A child goes down a playground slide that is...Ch. 6 - Spin-Dry Dragonflies Some dragonflies splash down...Ch. 6 - The da Vinci Code Leonardo da Vinci (1452-1519) is...Ch. 6 - A 4 5-kg sled is pulled with constant speed across...Ch. 6 - A 0 045-kg golf ball hangs by a string from the...Ch. 6 - A physics textbook weighing 22 N rests on a desk....Ch. 6 - Predict/Calculate The blocks shown in Figure 6-64...Ch. 6 - A Conical Pendulum A 0 075-kg toy airplane is tied...Ch. 6 - A tugboat tows a barge at constant speed with a...Ch. 6 - Predict/Calculate Two blocks, stacked one on top...Ch. 6 - Predict/Calculate In a daring rescue by helicopter...Ch. 6 - Predict/Calculate A light spring with a fore...Ch. 6 - Predict/Calculate The blocks in Figure 6-69 have...Ch. 6 - Predict/Calculate Playing a Violin The tension in...Ch. 6 - Predict/Calculate A 9 8-kg monkey hangs from a...Ch. 6 - As your plane circles an airport, it moves in a...Ch. 6 - At a playground, a 22-kg child sits on a spinning...Ch. 6 - A 2.0-kg box rests on a plank that is inclined at...Ch. 6 - A wood block of mass m rests on a larger wood...Ch. 6 - A hockey puck of mass m is attached to a string...Ch. 6 - Predict/Calculate A popular ride at amusement...Ch. 6 - A Conveyor Belt A box is placed on a conveyor belt...Ch. 6 - As part of a circus act, a person drives a...Ch. 6 - On the straight-line segment II in Figure 6-76 (b)...Ch. 6 - 82. Rank the straight segments I, II, and III in...Ch. 6 - In use on a typical human nose, the end-to-end...Ch. 6 - Predict/Calculate Referring to Example 6-3 Suppose...Ch. 6 - Predict/Calculate Referring to Example 6-3 The...Ch. 6 - Referring to Example 6-13 Suppose that the mass on...Ch. 6 - Referring to Example 6-15 (a) At what speed will...
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