/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q. 41 II An electric fan goes from res... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 4: Q. 41 (page 107)

II An electric fan goes from rest to1800rpm in 4.0s. What is its angular acceleration?

Short Answer

Expert verified

The angular acceleration of the fan is 47.12rad/s2.

Step by step solution

01

Step 1. Given information

The electric fan goes from rest to1800rpm in 4.0s.

02

Step 2. Explanation

The angular acceleration of the fan is,

伪=蝇2鈭�蝇1t

Here, 伪is the angular acceleration of the fan, 蝇2is the final angular velocity of the fan, 蝇1is the initial velocity of the fan, and t is the period of time.

At initial position, the fan is at rest. Thus 蝇1=0rad/s.

Substitute 0rad/sfor 蝇1,1800rpmfor 蝇2and 4.0sfor tin the above equation to find 伪.

伪=1800rpm脳1min60s脳2mmd1rv鈭�0rad/s4.0s=47.12rad/s2

Thus, the angular acceleration of the fan is 47.12rad/s2.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

You are given the equations that are used to solve a problem. For each of these, you are to

a. Write a realistic problem for which these are the correct equations. Be sure that the answer your problem requests is consistent with the equations given.

b. Finish the solution of the problem, including a pictorial representation.

vx=-(6cos45掳)m/s+3m/svy=6sin45掳+0m/svyt1=100mx1=vxt1

25. II FIGURE EX4.25 shows the angular-velocity-versus-time graph for a particle moving in a circle, starting from 胃0=0鈥娾赌妑补诲at t=0s. Draw the angular-position-versus-time graph. Include an appropriate scale on both axes.

. II A wheel initially rotating at experiences the angular acceleration shown in FIGURE EX4.39. What is the wheel's angular velocity, in rpm, at ?

FIGURE EX4.39

When the moving sidewalk at the airport is broken, as it often seems to be, it takes you to walk 50sfrom your gate to baggage claim. When it is working and you stand on the moving sidewalk the entire way, without walking, it takes75s to travel the same distance. How long will it take you to travel from the gate to baggage claim if you walk while riding on the moving sidewalk?

A car starts from rest on a curve with a radius of 120mand accelerates tangentially at 1.0m/s2 . Through what angle will the car have traveled when the magnitude of its total acceleration is 2.0m/s2 ?
See all solutions

Recommended explanations on Physics Textbooks

Geometrical and Physical Optics

Read Explanation

Linear Momentum

Read Explanation

Further Mechanics and Thermal Physics

Read Explanation

Electrostatics

Read Explanation

Torque and Rotational Motion

Read Explanation

Famous Physicists

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.