Same situation as the previous problem. Which expression is a correct application of summing the moment about the instantaneous center of zero velocity (IC) with CCW positive? a. Ffr=-¹/2 mr²a b. Ffr-mgr cos 0 = -³/2 mr²a C. -mgr sin 0= -³/2 mr² a d. -mgr cos = -¹/2 mr²a e. none of the above (Note: I assume a is CW, so the negative signs in the RHS are intentional and are not a reason to choose e.) y x G 0 8/ Hk

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
icon
Related questions
Question
Same situation as the previous problem. Which expression is
a correct application of summing the moment about the
instantaneous center of zero velocity (IC) with CCW
positive?
a. Ffr= -¹/2 mr²a
b.
c.
d.
e.
Ffr-mgr cos 0 = -³/2 mr²a
-mgr sin = -³/2 mr²a
-mgr cos 0= -¹/2 mr² a
none of the above (Note: I assume a is CW, so the
negative signs in the RHS are intentional and are not
a reason to choose e.)
5. Four slender rods of 5 kg each are pinned at O as shown. The
system is at rest in the horizontal plane when a 90 N force is
applied as shown. How fast is the assembly spinning after 3
seconds?
c.
d.
e.
a. 86.9 rad/s
b. 21.7 rad/s
22.5 rad/s
27.2 rad/s
none of the above
G
15°-
0
0.8 m
90 N
8↓
Hs
Hk
0.4 m
Transcribed Image Text:Same situation as the previous problem. Which expression is a correct application of summing the moment about the instantaneous center of zero velocity (IC) with CCW positive? a. Ffr= -¹/2 mr²a b. c. d. e. Ffr-mgr cos 0 = -³/2 mr²a -mgr sin = -³/2 mr²a -mgr cos 0= -¹/2 mr² a none of the above (Note: I assume a is CW, so the negative signs in the RHS are intentional and are not a reason to choose e.) 5. Four slender rods of 5 kg each are pinned at O as shown. The system is at rest in the horizontal plane when a 90 N force is applied as shown. How fast is the assembly spinning after 3 seconds? c. d. e. a. 86.9 rad/s b. 21.7 rad/s 22.5 rad/s 27.2 rad/s none of the above G 15°- 0 0.8 m 90 N 8↓ Hs Hk 0.4 m
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Basic Terminology in Mechanics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY