Explanation 1) Concept: We use the concept of work done related to change in angular kinetic energy. First, we can find the angular velocity and moment of inertia. Then plugging it in the equation, we can find the work done. Also, we can find the range of work done by plugging the average value of mass of the person. 2) Formulae: i) W = 1 2 I ω f 2 - 1 2 I ω i 2 ii) I = M R 2 iii) ω = 2 π T 3) Given: i) Total cars are 36. ii) Each car carries 60 passengers. iii) Diameter of circle is d = 76 m . iv) Time is T = 2 m i n . 4) Calculations: Amount of work required of the machinery to rotate the passengers alone: First we will find the total number of people in 36 cars. 36 × 60 = 2160 We can find angular velocity from time. ω = 2 π T = 2 × 3.14 120 = 0

11th Edition

ISBN: 9781119573913

Author: Halliday

Publisher: WILEY

See similar textbooks

Concept explainers

Angular Momentum

The momentum of an object is given by multiplying its mass and velocity. Momentum is a property of any object that moves with mass. The only difference between angular momentum and linear momentum is that angular momentum deals with moving or spinning ob…

Moment of a Force

The idea of moments is an important concept in physics. It arises from the fact that distance often plays an important part in the interaction of, or in determining the impact of forces on bodies. Moments are often described by their order [first, second…

Videos

Question

Chapter 10, Problem 82P

To determine

To find:

Amount of work required of the machinery to rotate the passengers alone.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 10, Problem 81P

Chapter 10, Problem 83P

Students have asked these similar questions

Example Two charges, one with +10 μC of charge, and another with - 7.0 μC of charge are placed in line with each other and held at a fixed distance of 0.45 m. Where can you put a 3rd charge of +5 μC, so that the net force on the 3rd charge is zero?

* Coulomb's Law Example Three charges are positioned as seen below. Charge 1 is +2.0 μC and charge 2 is +8.0μC, and charge 3 is - 6.0MC. What is the magnitude and the direction of the force on charge 2 due to charges 1 and 3? 93 kq92 F == 2 r13 = 0.090m 91 r12 = 0.12m 92 Coulomb's Constant: k = 8.99x10+9 Nm²/C² ✓

Make sure to draw a Free Body Diagram as well

Chapter 10 Solutions

FUNDAMENTALS OF PHYSICS V.1

Ch. 10 - Figure 10-20 is a graph of the angular velocity...Ch. 10 - Figure 10-21 shows plots of angular position ...Ch. 10 - A force is applied to the rim of a disk that can...Ch. 10 - Figure 10-22b is a graph of the angular position...Ch. 10 - In Fig. 10-23, two forces F1 and F2 act on a disk...Ch. 10 - In the overhead view of Fig. 10-24, five forces of...Ch. 10 - Figure 10-25a is an overhead view of a horizontal...Ch. 10 - Figure l0-25b shows an overhead view of a...Ch. 10 - Figure 10-26 shows a uniform metal plate that had...Ch. 10 - Figure 10-27 shows three flat disks of the same...

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.

Amount of work required of the machinery to rotate the passengers alone.

Solution Summary: The author explains the concept of work done related to change in angular kinetic energy.

Concept explainers

Videos

To find: Amount of work required of the machinery to rotate the passengers alone.

Want to see the full answer?

Chapter 10 Solutions

To find:

Amount of work required of the machinery to rotate the passengers alone.