What is the weight of the motor?Two people carry a heavy electric motor by placing it on a light board 2.70 m long. One person lifts at one endwith a force of 400N. and the other lifts the opposite end with a force of 850N.w = 1050 NYou may want to review (Page)For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Locating yourcenter of gravity while you work outSubmitPrevloun Anawerev CorrectIDENTIFY: Apply EF, = 0 and Er,= 0 to the board.SET UP: Let +y be upward.EXECUTE: If the board is taken to be massless, the weight of the motor is the sum of the applied forces, 1050 N.Part BWhere along the board is its center of gravity located?z= 1.67 m from the end where the 400-N force is appliedSubmitPrevlous Anawerev CorrectSET UP: Let z be the distance of the center of gravity of the motor from the end of the board where the 400-N force is applied.(2.70 m)(650 N)(1060 N)EXECUTE: The motor is a distance1.67 m from the end where the 400-N force is applied, and so is 1.03 m from the end where the 650-N force is applied.Part CSuppose the board is not light but weighs 220 N. with its center of gravity at its center, and the two people each exert the same forces as before. What is the weight of the motor in this case?Templates Symbols undo redo feset keyboard shortcuts HelpSubmitPrevlous Answere Requeet AnawerX Incorrect; Try Again; 3 attempts remainingPart DWhere is its center of gravity located?Templates Symbols undo redo Teset keyboard shortcuts helpm from the end where the 400-N force is applied

Answered: Image /qna-images/answer/6d06b138-c53c-4e40-8d02-1c78ce560397.jpg

Part C Suppose the board is not light but weighs 220 N. with its center of gravity at its center, and the two people each exert the same forces as before. What is the weight of the motor in this case? Temglates Symbols undo rado Tese keyboard shortcuts Help Submit Previous Answere Raqueet Answer x Incorrect; Try Again; 3 attempts remaining Part D Where is its center of gravity located? Templates Symbols undo rego Tese keyboard shortouts help m from the end where the 400-N force is applied

Part C Suppose the board is not light but weighs 220 N. with its center of gravity at its center, and the two people each exert the same forces as before. What is the weight of the motor in this case? Temglates Symbols undo rado Tese keyboard shortcuts Help Submit Previous Answere Raqueet Answer x Incorrect; Try Again; 3 attempts remaining Part D Where is its center of gravity located? Templates Symbols undo rego Tese keyboard shortouts help m from the end where the 400-N force is applied

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.

Question

What is the weight of the motor?
Two people carry a heavy electric motor by placing it on a light board 2.70 m long. One person lifts at one end
with a force of 400N. and the other lifts the opposite end with a force of 850N.
w = 1050 N
You may want to review (Page)
For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Locating your
center of gravity while you work out
Submit
Prevloun Anawere
v Correct
IDENTIFY: Apply EF, = 0 and Er,= 0 to the board.
SET UP: Let +y be upward.
EXECUTE: If the board is taken to be massless, the weight of the motor is the sum of the applied forces, 1050 N.
Part B
Where along the board is its center of gravity located?
z= 1.67 m from the end where the 400-N force is applied
Submit
Prevlous Anawere
v Correct
SET UP: Let z be the distance of the center of gravity of the motor from the end of the board where the 400-N force is applied.
(2.70 m)(650 N)
(1060 N)
EXECUTE: The motor is a distance
1.67 m from the end where the 400-N force is applied, and so is 1.03 m from the end where the 650-N force is applied.
Part C
Suppose the board is not light but weighs 220 N. with its center of gravity at its center, and the two people each exert the same forces as before. What is the weight of the motor in this case?
Templates Symbols undo redo feset keyboard shortcuts Help
Submit
Prevlous Answere Requeet Anawer
X Incorrect; Try Again; 3 attempts remaining
Part D
Where is its center of gravity located?
Templates Symbols undo redo Teset keyboard shortcuts help
m from the end where the 400-N force is applied

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