/*! 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.31 A 50,000聽kg locomotive is trave... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 6: Q.31 (page 155)

A 50,000kg locomotive is traveling at 10m/swhen its engine and brakes both fail. How far will the locomotive roll before it comes to a stop? Assume the track is level.

Short Answer

Expert verified

The locomotive roll about2.6脳103mbefore it stops.

Step by step solution

01

Content Introduction

Deceleration is described as a reduction in speed as the body advances away from the beginning position. Negative acceleration is another name for deceleration.

02

Content Explanation

The net deceleration is provided with the formula from the equilibrium of forces F=ma渭smg=maa=渭sg

The rolling friction between the road and the rubber is渭s=0.002

Here we are given, vi=0,vf=10

vf2+vi2=2ass=(10)22脳0.002脳9.81s=2.6脳103m

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

A ball is shot from a compressed-air gun at twice its terminal speed.

a. What is the ball's initial acceleration, as a multiple of g, if it is shot straight up?

b. What is the ball's initial acceleration, as a multiple of g, if it is shot straight down?

The four balls in FIGURE Q6.9 have been thrown straight up. They have the same size, but different masses. Air resistance is negligible. Rank in order, from largest to smallest, the magnitude of the net force acting on each ball. Some may be equal. Give your answer in the form a>b>c=dand explain your ranking.

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. The scale reads 830 N for the first 3.0 s after the elevator starts moving, then 930 N for the next 3.0 s. What is the elevator鈥檚 velocity 6.0 s after starting?

The three ropes inFIGUREEX6.2are tied to a small, very light ring. Two of the ropes are anchored to walls at right angles, and the third rope pulls as shown. What are T1and T2, the magnitudes of the tension forces in the first two ropes?

Are the following statements true or false? Explain.

a. The mass of an object depends on its location.

b. The weight of an object depends on its location.

c. Mass and weight describe the same thing in different units.
See all solutions

Recommended explanations on Physics Textbooks

Electric Charge Field and Potential

Read Explanation

Work Energy and Power

Read Explanation

Wave Optics

Read Explanation

Linear Momentum

Read Explanation

Solid State Physics

Read Explanation

Electricity

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.