Solution To solve for the work done, first we must determine what is the final kinetic energy of the electron. By concept, we know that K=(1/2)mv²1 K2=(1/2)mv2 But it was mentioned that: v2=( V1 so, K2 in terms of v1 is K2=( )mv², Substituting the expression for K1 results to K2= K1 Since work done is W=AK=K -K Evaluating results to W=( K1

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter9: Energy In Nonisolated Systems
Section: Chapter Questions
Problem 32PQ
icon
Related questions
Question

Kindly add label and box for the final answer thank you!

QUESTION 3
Problem
A moving electron has a Kinetic Energy K1. After a net amount of work is done on it, the electron is moving one-quarter as fast in the opposite direction. What is the work done Win terms of K1?
Solution
To solve for the work done, first we must determine what is the final kinetic energy of the electron.
By concept, we know that
K=(1/2)mv²1
K2=(1/2)mv2
But it was mentioned that:
v2=(
v1
so, K2 in terms of v1 is
K2=(
mv21
Substituting the expression for K1 results to
K2=(
K1
Since work done is
W=AK=K
Evaluating results to
W=(
K1
Transcribed Image Text:QUESTION 3 Problem A moving electron has a Kinetic Energy K1. After a net amount of work is done on it, the electron is moving one-quarter as fast in the opposite direction. What is the work done Win terms of K1? Solution To solve for the work done, first we must determine what is the final kinetic energy of the electron. By concept, we know that K=(1/2)mv²1 K2=(1/2)mv2 But it was mentioned that: v2=( v1 so, K2 in terms of v1 is K2=( mv21 Substituting the expression for K1 results to K2=( K1 Since work done is W=AK=K Evaluating results to W=( K1
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Physics for Scientists and Engineers: Foundations…
Physics for Scientists and Engineers: Foundations…
Physics
ISBN:
9781133939146
Author:
Katz, Debora M.
Publisher:
Cengage Learning
University Physics Volume 3
University Physics Volume 3
Physics
ISBN:
9781938168185
Author:
William Moebs, Jeff Sanny
Publisher:
OpenStax
Classical Dynamics of Particles and Systems
Classical Dynamics of Particles and Systems
Physics
ISBN:
9780534408961
Author:
Stephen T. Thornton, Jerry B. Marion
Publisher:
Cengage Learning