The ladder of the fire truck rotates around the z axis with an angularvelocity w₁ = 0.10 rad/s, which is increasing at 0.78 rad/s². At thesame instant it is rotating upward at a constant rate w₂ = 0.65 rad/s.(Figure 1)Figure@n40 ftАНННННННHaddddin0₂30°1 of 1Part ADetermine the velocity of point A located at the top of the ladder at this instant.Enter the components of the velocity in feet per second to three significant figures separated by commas.V Ax, VAy, Az = -3.46,-13.0,22.5 ft/sSubmitAll attempts used; correct answer displayedPart BPrevious AnswersDetermine the acceleration of point A located at the top of the ladder at this instant.Enter the components of the acceleration in feet per second squared to three significant figures separated by commas.a Ax, a Ay, a Az =SubmitProvide Feedback17 ΑΣΦ- 15.6, -27.0, – 31.2↓↑vecPrevious Answers Request AnswerX Incorrect; Try Again; 5 attempts remaining?ft/s²Next >

ω1 =0.10 rad/sω2 =0.65 rad/sLength of ladder = 40 ftθ = 30°

The ladder of the fire truck rotates around the z axis with an angular velocity w₁ = 0.10 rad/s, which is increasing at 0.78 rad/s². At the same instant it is rotating upward at a constant rate w₂= 0.65 rad/s. (Eigure 1) Part A Determine the velocity of point located at the top of the ladder at this instant. Enter the components of the velocity in feet per second to three significant figures separated by commas. Az Ay Az -3.46,-13.0,22.5 ft/s Submit Previous Answers All attempts used; correct answer displayed Part B Determine the acceleration of point A located at the top of the ladder at this instant. Enter the components of the acceleration in feet per second squared to three significant figures separated by commas.

The ladder of the fire truck rotates around the z axis with an angular velocity w₁ = 0.10 rad/s, which is increasing at 0.78 rad/s². At the same instant it is rotating upward at a constant rate w₂= 0.65 rad/s. (Eigure 1) Part A Determine the velocity of point located at the top of the ladder at this instant. Enter the components of the velocity in feet per second to three significant figures separated by commas. Az Ay Az -3.46,-13.0,22.5 ft/s Submit Previous Answers All attempts used; correct answer displayed Part B Determine the acceleration of point A located at the top of the ladder at this instant. Enter the components of the acceleration in feet per second squared to three significant figures separated by commas.

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

The ladder of the fire truck rotates around the z axis with an angular
velocity w₁ = 0.10 rad/s, which is increasing at 0.78 rad/s². At the
same instant it is rotating upward at a constant rate w₂ = 0.65 rad/s.
(Figure 1)
Figure
@n
40 ft
АНННННННHaddddin
0₂
30°
1 of 1
Part A
Determine the velocity of point A located at the top of the ladder at this instant.
Enter the components of the velocity in feet per second to three significant figures separated by commas.
V Ax, VAy, Az = -3.46,-13.0,22.5 ft/s
Submit
All attempts used; correct answer displayed
Part B
Previous Answers
Determine the acceleration of point A located at the top of the ladder at this instant.
Enter the components of the acceleration in feet per second squared to three significant figures separated by commas.
a Ax, a Ay, a Az =
Submit
Provide Feedback
17 ΑΣΦ
- 15.6, -27.0, – 31.2
↓↑
vec
Previous Answers Request Answer
X Incorrect; Try Again; 5 attempts remaining
?
ft/s²
Next >

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