To determine The reason a typical small helicopter with a single main rotor has a second small rotor on its tail and the consequence if the small rotor fails in flight. Explanation When the main rotor rotates, the helicopter will gain angular momentum . As no net external torque is acting on the helicopter, the angular momentum is conserved. So the helicopter will start to rotate in the opposite direction of the main rotor to keep the angular momentum constant in the absence of the second small rotor. So, in order to avoid the rotation of the helicopter, a small second rotor is used...

12th Edition

ISBN: 9780135745816

Author: Hewitt

Publisher: PEARSON

See similar textbooks

Concept explainers

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth w…

Videos

Question

Chapter 8, Problem 98RCQ

To determine

The reason a typical small helicopter with a single main rotor has a second small rotor on its tail and the consequence if the small rotor fails in flight.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 8, Problem 97RCQ

Chapter 8, Problem 99RCQ

Students have asked these similar questions

43. A mass må undergoes circular motion of radius R on a hori- zontal frictionless table, con- nected by a massless string through a hole in the table to a second mass m² (Fig. 5.33). If m₂ is stationary, find expres- sions for (a) the string tension and (b) the period of the circu- lar motion. m2 R m₁ FIGURE 5.33 Problem 43

CH 70. A block is projected up an incline at angle 0. It returns to its initial position with half its initial speed. Show that the coefficient of ki- netic friction is μk = tano.

Passage Problems A spiral is an ice-skating position in which the skater glides on one foot with the other foot held above hip level. It's a required element in women's singles figure-skating competition and is related to the arabesque performed in ballet. Figure 5.40 shows Canadian skater Kaetlyn Osmond executing a spiral during her medal-winning perfor- mance at the 2018 Winter Olympics in Gangneung, South Korea. 77. From the photo, you can conclude that the skater is a. executing a turn to her left. b. executing a turn to her right. c. moving in a straight line out of the page. 78. The net force on the skater a. points to her left. b. points to her right. c. is zero. 79. If the skater were to execute the same maneuver but at higher speed, the tilt evident in the photo would be a. less. b. greater. c. unchanged. FIGURE 5.40 Passage Problems 77-80 80. The tilt angle 0 that the skater's body makes with the vertical is given ap- proximately by 0 = tan¯¹(0.5). From this you can conclude…

Chapter 8 Solutions

CONCEPTUAL PHYSICS LL FD

Ch. 8 - What are the units of measurement for tangential...Ch. 8 - On a rotating turntable, does tangential speed or...Ch. 8 - A tapered cup rolled on a flat surface makes a...Ch. 8 - How does the tapered rim of a wheel on a railroad...Ch. 8 - 5. What is rotational inertia, and how is it...Ch. 8 - 6. Inertia depends on mass; rotational inertia...Ch. 8 - 7. As distance increases between most of the mass...Ch. 8 - 8. Consider three axes of rotation for a pencil:...Ch. 8 - 9. Which is easier to get swinging: a baseball bat...Ch. 8 - Why does bending your legs when running enable you...

Ch. 8 - 11. Which will have the greater acceleration...Ch. 8 - 12. What does a torque tend to do to an object? Ch. 8 - 13. What is meant by the “lever arm” of a...Ch. 8 - 14. How do clockwise and counterclockwise torques...Ch. 8 - 15. If you toss a stick into the air, it appears...Ch. 8 - Prob. 16RCQ Ch. 8 - 17. If you hang at rest by your hands from a...Ch. 8 - Where is the center of mass of a hollow soccer...Ch. 8 - 19. What is the relationship between the center of...Ch. 8 - 20. Why doesn’t the Leaning Tower of Pisa topple...Ch. 8 - 21. In terms of center of gravity, support base,...Ch. 8 - 22.When you whirl a can at the end of a string in...Ch. 8 - 23. Is it an inward force or an outward force that...Ch. 8 - 24. If the string that holds a whirling can in its...Ch. 8 - 25. If you are not wearing a seat belt in a car...Ch. 8 - 26. Why is centrifugal force in a rotating frame...Ch. 8 - 27. How can gravity be simulated in an orbiting...Ch. 8 - 28. Distinguish between linear momentum and...Ch. 8 - 29. What is the law of inertia for rotating...Ch. 8 - If a skater who is spinning pulls her arms in so...Ch. 8 - Contact Grandpa and tell him how you’re learning...Ch. 8 - Prob. 32RCQ Ch. 8 - Prob. 33RCQ Ch. 8 - Prob. 34RCQ Ch. 8 - Prob. 35RCQ Ch. 8 - Prob. 36RCQ Ch. 8 - Prob. 37RCQ Ch. 8 - Torque = lever arm ×...Ch. 8 - 39. Calculate the torque produced by the same 50-N...Ch. 8 - Prob. 40RCQ Ch. 8 - 41. Calculate the force of friction that keeps an...Ch. 8 - Angular momentum =...Ch. 8 - 43. If a persons speed doubles and all else...Ch. 8 - 44. The diameter of the base of a tapered...Ch. 8 - To tighten a bolt, you push with a force of 80 N...Ch. 8 - 46. The rock and meterstick balance at the 25-cm...Ch. 8 - In one of the photos at the beginning of this...Ch. 8 - 48. An ice puck of mass m revolves on an icy...Ch. 8 - 49. If a trapeze artist rotates once each second...Ch. 8 - A small space telescope at the end of a tether...Ch. 8 - 51. The three cups are rolled on a level surface....Ch. 8 - 52. Three types of rollers are placed on slightly...Ch. 8 - 53. Beginning from a rest position, a solid disk...Ch. 8 - 54. You hold a meterstick at one end with the same...Ch. 8 - 55. Three physics majors in good physical shape...Ch. 8 - Prob. 56RCQ Ch. 8 - Prob. 57RCQ Ch. 8 - Prob. 58RCQ Ch. 8 - 59. The wheels of railroad trains are tapered, a...Ch. 8 - Prob. 60RCQ Ch. 8 - 61. The front wheels of a racing vehicle are...Ch. 8 - 62. Which will have the greater acceleration...Ch. 8 - Prob. 63RCQ Ch. 8 - 64. Is the net torque changed when a partner on a...Ch. 8 - Prob. 65RCQ Ch. 8 - 66. When you pedal a bicycle, maximum torque is...Ch. 8 - Prob. 67RCQ Ch. 8 - Prob. 68RCQ Ch. 8 - Prob. 69RCQ Ch. 8 - Prob. 70RCQ Ch. 8 - 71. Explain why a long pole is more beneficial to...Ch. 8 - Prob. 72RCQ Ch. 8 - Prob. 73RCQ Ch. 8 - Prob. 74RCQ Ch. 8 - Prob. 75RCQ Ch. 8 - Prob. 76RCQ Ch. 8 - Prob. 77RCQ Ch. 8 - Prob. 78RCQ Ch. 8 - 79. The centers of gravity of the three trucks...Ch. 8 - Prob. 80RCQ Ch. 8 - Prob. 81RCQ Ch. 8 - Prob. 82RCQ Ch. 8 - 83. When you are in the front passenger seat of a...Ch. 8 - Prob. 84RCQ Ch. 8 - Prob. 85RCQ Ch. 8 - Prob. 86RCQ Ch. 8 - 87. The occupant inside a rotating space habitat...Ch. 8 - Prob. 88RCQ Ch. 8 - A motorcyclist is able to ride on the vertical...Ch. 8 - 90. The sketch shows a conical pendulum. The bob...Ch. 8 - Prob. 91RCQ Ch. 8 - Prob. 92RCQ Ch. 8 - Prob. 93RCQ Ch. 8 - 94. If all of Earth’s inhabitants moved to the...Ch. 8 - Prob. 95RCQ Ch. 8 - If the world’s populations moved to the North Pole...Ch. 8 - Prob. 97RCQ Ch. 8 - 98. Why does a typical small helicopter with a...Ch. 8 - 99. We believe that our galaxy was formed from a...Ch. 8 - Prob. 100RCQ Ch. 8 - Prob. 101RCQ Ch. 8 - Prob. 102RCQ Ch. 8 - Prob. 103RCQ Ch. 8 - 104.When a car drives off a cliff it rotates...Ch. 8 - 105. Discuss why a car noses up when accelerating...Ch. 8 - 106. Discuss how a ramp would help you to...Ch. 8 - 107. Which will roll down an incline faster: a can...Ch. 8 - 108. Why are lightweight tires preferred in...Ch. 8 - 109. A youngster who has entered a soapbox derby...Ch. 8 - 110. The spool is pulled in three ways, as shown....Ch. 8 - 111. Nobody at the playground wants to play with...Ch. 8 - 112. How can the three bricks be stacked so that...Ch. 8 - 113. A long track balanced like a seesaw supports...Ch. 8 - With respect to Diana’s finger, where is the...Ch. 8 - When a long-range cannonball is fired toward the...Ch. 8 - Most often we say that force causes acceleration....

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.