Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN: 9781305116399
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 10, Problem 10.28P
The fishing pole in Figure P10.28 makes an angle of 20.0° with the horizontal. What is the torque exerted by the fish about an axis perpendicular to the page and passing through the angler’s hand if the fish pulls on the fishing line with a force
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Chapter 10 Solutions
Physics for Scientists and Engineers, Technology Update (No access codes included)
Ch. 10 - A rigid object rotates in a counterclockwise sense...Ch. 10 - Consider again the pairs of angular positions for...Ch. 10 - Ethan and Rebecca are riding on a merry-go-round....Ch. 10 - (i) If you are trying to loosen a stubborn screw...Ch. 10 - You turn off your electric drill and find that the...Ch. 10 - A section of hollow pipe and a solid cylinder have...Ch. 10 - A ball rolls without slipping down incline A,...Ch. 10 - A cyclist rides a bicycle with a wheel radius of...Ch. 10 - Consider an object on a rotating disk a distance r...Ch. 10 - A wheel is rotating about a fixed axis with...
Ch. 10 - A grindstone increases in angular speed from 4.00...Ch. 10 - Suppose a cars standard tires are replaced with...Ch. 10 - Figure OQ10.6 shows a system of four particles...Ch. 10 - As shown in Figure OQ10.7, a cord is wrapped onto...Ch. 10 - A constant net torque is exerted on an object....Ch. 10 - Prob. 10.9OQCh. 10 - A toy airplane hangs from the ceiling at the...Ch. 10 - A solid aluminum sphere of radius R has moment of...Ch. 10 - Is it possible to change the translational kinetic...Ch. 10 - Must an object be rotating to have a nonzero...Ch. 10 - Suppose just two external forces act on a...Ch. 10 - Explain how you might use the apparatus described...Ch. 10 - Example 10.6 Angular Acceleration of a Wheel A...Ch. 10 - Explain why changing the axis of rotation of an...Ch. 10 - Suppose you have two eggs, one hard-boiled and the...Ch. 10 - Suppose you set your textbook sliding across a...Ch. 10 - (a) What is the angular speed of the second hand...Ch. 10 - One blade of a pair of scissors rotates...Ch. 10 - If you see an object rotating, is there...Ch. 10 - If a small sphere of mass M were placed at the end...Ch. 10 - Three objects of uniform densitya solid sphere, a...Ch. 10 - Which of the entries in Table 10.2 applies to...Ch. 10 - Figure CQ10.15 shows a side view of a childs...Ch. 10 - A person balances a meterstick in a horizontal...Ch. 10 - (a) Find the angular speed of the Earths rotation...Ch. 10 - A potters wheel moves uniformly from rest to an...Ch. 10 - During a certain time interval, the angular...Ch. 10 - A bar on a hinge starts from rest and rotates with...Ch. 10 - A wheel starts from rest and rotates with constant...Ch. 10 - A centrifuge in a medical laboratory rotates at an...Ch. 10 - An electric motor rotating a workshop grinding...Ch. 10 - A machine part rotates at an angular speed of...Ch. 10 - A dentists drill starts from rest. After 3.20 s of...Ch. 10 - Why is the following situation impossible?...Ch. 10 - A rotating wheel requires 3.00 s to rotate through...Ch. 10 - The tub of a washer goes into its spin cycle,...Ch. 10 - A spinning wheel is slowed down by a brake, giving...Ch. 10 - Review. Consider a tall building located on the...Ch. 10 - A racing car travels on a circular track of radius...Ch. 10 - Make an order-of-magnitude estimate of the number...Ch. 10 - A discus thrower (Fig. P10.9) accelerates a discus...Ch. 10 - Figure P10.18 shows the drive train of a bicycle...Ch. 10 - A wheel 2.00 m in diameter lies in a vertical...Ch. 10 - A car accelerates uniformly from rest and reaches...Ch. 10 - A disk 8.00 cm in radius rotates at a constant...Ch. 10 - Prob. 10.22PCh. 10 - A car traveling on a flat (unbanked), circular...Ch. 10 - A car traveling on a flat (unbanked), circular...Ch. 10 - In a manufacturing process, a large, cylindrical...Ch. 10 - Review. A small object with mass 4.00 kg moves...Ch. 10 - Find the net torque on the wheel in Figure P10.14...Ch. 10 - The fishing pole in Figure P10.28 makes an angle...Ch. 10 - An electric motor turns a flywheel through a drive...Ch. 10 - A grinding wheel is in the form of a uniform solid...Ch. 10 - A 150-kg merry-go-round in the shape of a uniform,...Ch. 10 - Review. A block of mass m1 = 2.00 kg and a block...Ch. 10 - A model airplane with mass 0.750 kg is tethered to...Ch. 10 - A disk having moment of inertia 100 kg m2 is free...Ch. 10 - The combination of an applied force and a friction...Ch. 10 - Review. Consider the system shown in Figure P10.36...Ch. 10 - A potters wheela thick stone disk of radius 0.500...Ch. 10 - Imagine that you stand tall and turn about a...Ch. 10 - A uniform, thin, solid door has height 2.20 m,...Ch. 10 - Two balls with masses M and m are connected by a...Ch. 10 - Figure P10.41 shows a side view of a car tire...Ch. 10 - Following the procedure used in Example 10.7,...Ch. 10 - Three identical thin rods, each of length L and...Ch. 10 - Rigid rods of negligible mass lying along the y...Ch. 10 - The four particles in Figure P10.45 are connected...Ch. 10 - Many machines employ cams for various purposes,...Ch. 10 - A war-wolf or trebuchet is a device used during...Ch. 10 - A horizontal 800-N merry-go-round is a solid disk...Ch. 10 - Big Ben, the nickname for the clock in Elizabeth...Ch. 10 - Consider two objects with m1 m2 connected by a...Ch. 10 - The top in Figure P10.51 has a moment of inertia...Ch. 10 - Why is the following situation impossible? In a...Ch. 10 - In Figure P10.53, the hanging object has a mass of...Ch. 10 - Review. A thin, cylindrical rod = 24.0 cm long...Ch. 10 - Review. An object with a mass of m = 5.10 kg is...Ch. 10 - This problem describes one experimental method for...Ch. 10 - A uniform solid disk of radius R and mass M is...Ch. 10 - The head of a grass string trimmer has 100 g of...Ch. 10 - A cylinder of mass 10.0 kg rolls without slipping...Ch. 10 - A solid sphere is released from height h from the...Ch. 10 - (a) Determine the acceleration of the center of...Ch. 10 - A smooth cube of mass m and edge length r slides...Ch. 10 - A uniform solid disk and a uniform hoop are placed...Ch. 10 - A tennis ball is a hollow sphere with a thin wall....Ch. 10 - A metal can containing condensed mushroom soup has...Ch. 10 - As shown in Figure 10.13 on page 306, toppling...Ch. 10 - Review. A 4.00-m length of light nylon cord is...Ch. 10 - An elevator system in a tall building consists of...Ch. 10 - A shaft is turning at 65.0 rad/s at time t = 0....Ch. 10 - A shaft is turning at angular speed at time t =...Ch. 10 - Review. A mixing beater consists of three thin...Ch. 10 - The hour hand and the minute hand of Big Ben, the...Ch. 10 - A long, uniform rod of length L and mass M is...Ch. 10 - A bicycle is turned upside down while its owner...Ch. 10 - A bicycle is turned upside down while its owner...Ch. 10 - Prob. 10.76APCh. 10 - Review. As shown in Figure P10.77, two blocks are...Ch. 10 - Review. A string is wound around a uniform disk of...Ch. 10 - The reel shown in Figure P10.79 has radius R and...Ch. 10 - A common demonstration, illustrated in Figure...Ch. 10 - A uniform solid sphere of radius r is placed on...Ch. 10 - Review. A spool of wire of mass M and radius R is...Ch. 10 - A solid sphere of mass m and radius r rolls...Ch. 10 - A thin rod of mass 0.630 kg and length 1.24 m is...Ch. 10 - Prob. 10.85APCh. 10 - Review. A clown balances a small spherical grape...Ch. 10 - A plank with a mass M = 6.00 kg rests on top of...Ch. 10 - As a gasoline engine operates, a flywheel turning...Ch. 10 - As a result of friction, the angular speed of a...Ch. 10 - To find the total angular displacement during the...Ch. 10 - A spool of thread consists of a cylinder of radius...Ch. 10 - A cord is wrapped around a pulley that is shaped...Ch. 10 - A merry-go-round is stationary. A clog is running...Ch. 10 - A uniform, hollow, cylindrical spool has inside...
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- The fishing pole in Figure P10.22 makes an angle of 20.0 with the horizontal. What is the torque exerted by the fish about an axis perpendicular to the page and passing through the anglers hand if the fish pulls on the fishing line with a force F=100N at an angle 37.0 below the horizontal? The force is applied at a point 2.00 m from the anglers hands. Figure P10.22arrow_forwardConsider the disk in Problem 71. The disks outer rim hasradius R = 4.20 m, and F1 = 10.5 N. Find the magnitude ofeach torque exerted around the center of the disk. FIGURE P12.71 Problems 71-75arrow_forwardAnswer yes or no to the following questions. (a) Is it possible to calculate the torque acting on a rigid object without specifying an axis of rotation? (b) Is the torque independent of the location of the axis of rotation?arrow_forward
- A uniform cylindrical grinding wheel of mass 50.0 kg and diameter 1.0 m is turned on by an electric motor. The friction in the bearings is negligible. (a) What torque must be applied to the wheel to bring it from rest to 120 rev/min in 20 revolutions? (b) A tool whose coefficent of kinetic friction with the wheel with a force of 40.0 N. What torque must be supplied by the motor to keep the wheel rotating at a constant angular velocity?arrow_forward(a) When opening a door, you push on it perpendicularly with a force of 55.0 N at a distance of 0.850m from the hinges. What torque are you exerting relative to the hinges? (b) Does it matter if you push at the same height as the hinges?arrow_forwardWhen tightening a bolt, you push perpendicularly on a wrench with a force of 165 N at a distance of 0.140 m from the center of the bolt. How much torque are you exerting in newton-meters (relative to the center of the bolt)?arrow_forward
- Assume a single 300-N force is exerted on a bicycle frame as shown in Figure OQ10.5. Consider the torque produced by this force about axes perpendicular to the plane of the paper and through each of the points A through E, where E is the center of mass of the frame. Rank the torques A, B, C, D, and E from largest to smallest, noting that zero is greater than a negative quantity. If two torques are equal, note their equality in your ranking. Figure OQ10.5arrow_forwardThe hour hand and the minute hand of Big Ben, the Parliament tower clock in London, are 2.70 m and 4.50 m long and have masses of 60.0 kg and 100 kg, respectively (see Fig. P10.17). (a) Determine the total torque due to the weight of these hands about the axis of rotation when the time reads (i) 3:00, (ii) 5:15, (iii) 6:00, (iv) 8:20, and (v) 9:45. (You may model the hands as long, thin, uniform rods.) (b) Determine all times when the total torque about the axis of rotation is zero. Determine the times to the nearest second, solving a transcendental equation numerically.arrow_forwardFigure P10.82 shows a vertical force applied tangentially to a uniform cylinder of weight Fg. The coefficient of static friction between the cylinder and all surfaces is 0.500. The force P is increased in magnitude until the cylinder begins to rotate. In terms of Fg, find the maximum force magnitude P that can be applied without causing the cylinder to rotate. Suggestion: Show that both friction forces will be at their maximum values when the cylinder is on the verge of slipping. Figure P10.82arrow_forward
- What force must be applied to end of a rod along the x-axis of length 2.0 m in order to produce a torque on the rod about the origin of 8.0k Nm ?arrow_forwardAn automobile engine can produce 200Nm of torque. Calculate the angular acceleration produced if 95.0 of this torque is applied to the drive shaft, axle, and rear wheels of a car, given the following information. The car is suspended so that the wheels can turn freely. Each wheel acts like a 15.0-kg disk that has a 0.180-m radius. The walls of each tire act like a 2.00-kg annular ring that has inside radius of 0.180 m and outside radius of 0.320 m. The tread of each tire acts like a 10.0-kg hoop of radius 0.330 m. The 14.0-kg axle acts like a rod that has a 2.00-cm radius. The 30.0-kg drive shaft acts like a rod that has a 3.20-cm radius.arrow_forwardIn testing an automobile tire for proper alignment, a technicianmarks a spot on the tire 0.200 m from the center. He then mountsthe tire in a vertical plane and notes that the radius vector to thespot is at an angle of 35.0 with the horizontal. Starting from rest,the tire is spun rapidly with a constant angular acceleration of 3.00 rad/s2. a. What is the angular speed of the wheel after 4.00 s? b. What is the tangential speed of the spot after 4.00 s? c. What is the magnitude of the total accleration of the spot after 4.00 s?" d. What is the angular position of the spot after 4.00 s?arrow_forward
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What is Torque? | Physics | Extraclass.com; Author: Extraclass Official;https://www.youtube.com/watch?v=zXxrAJld9mo;License: Standard YouTube License, CC-BY