/*! 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. 2 Particle A has half the mass and... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 9: Q. 2 (page 227)

Particle A has half the mass and eight times the kinetic energy of particle B. What is the speed ratio vA/vB?

Short Answer

Expert verified

Ratio of speed vA/vB= 4

Step by step solution

01

Step:1 Given Information

ma = 1/2mb

KEa=8KEb

02

Explanation  

First find Kinetic energy

KEa = 1/2 ma va2...................................(1)

KEb = 1/2 mb vb2...................................(2)

Divide 1 by 2 , we get

KEaKEb=(1/2mava2)(1/2mbvb2)

As substitute the given ratio ma = 1/2mb and KEa=8KEb

so

8=(1/2mava2)(1/2mbvb2)va2vb2=8脳2vavb=4

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

Astronomers using a 2.0-m-diameter telescope observe a distant supernova鈥攁n exploding star. The telescope鈥檚 detector records 9.1脳1011J of light energy during the first 10 s. It鈥檚 known that this type of supernova has a visible-light power output of 5.0脳1037W for the first 10 s of the explosion. How distant is the supernova? Give your answer in light years, where one light year is the distance light travels in one year. The speed of light is 3.0脳108m/s..

A particle moving to the left is slowed by a force pushing to the right. Is the work done on the particle positive or negative? Or is there not enough information to tell? Explain.

A ball shot straight up with kinetic energy K0 reaches height h. What height will it reach if the initial kinetic energy is doubled?

FIGURE is the kinetic-energy graph for a 2.0 kg object moving along the x-axis. Determine the work done on the object during each of the four intervals AB, BC, CD, and DE.

a. How much work does an elevator motor do to lift a 1000kg elevator a height of 100m?

b. How much power must the motor supply to do this in50 s at constant speed?
See all solutions

Recommended explanations on Physics Textbooks

Classical Mechanics

Read Explanation

Rotational Dynamics

Read Explanation

Force

Read Explanation

Scientific Method Physics

Read Explanation

Circular Motion and Gravitation

Read Explanation

Work Energy and Power

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.