Homework help : What object rotates at 90 RPM?

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SUMMARY

An object with an angular velocity of 3π radians per second corresponds to a rotational speed of 90 RPM. This conversion is essential for identifying common objects that exhibit this rotational speed. Participants in the forum suggest using online resources to find examples of objects rotating at 90 RPM, emphasizing the importance of research in solving the homework problem. The discussion highlights the need for students to demonstrate effort in their inquiries before seeking assistance.

PREREQUISITES
  • Understanding of angular velocity and its units
  • Familiarity with radian measures and conversions
  • Basic knowledge of rotational motion concepts
  • Ability to conduct effective online research
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  • Learn about the relationship between angular velocity and RPM
  • Research common objects that rotate at specific RPMs
  • Explore online tools for converting between radians and RPM
  • Investigate the physics of rotational motion and its applications
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Students studying physics, educators teaching rotational dynamics, and anyone interested in practical applications of angular velocity in real-world scenarios.

sayo
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Homework Statement
An object has an angular velocity of 3pi radians per second. What object could this be? Justify your choice. If
[Some research and/or conversions may be required here.]
Relevant Equations
Radian measures
H
 
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Hello @sayo,

Welcome to PF! :welcome:

sayo said:
Homework Statement:: An object has an angular velocity of 3pi radians per second. What object could this be? Justify your choice. If
[Some research and/or conversions may be required here.]
Relevant Equations:: Radian measures

H

What do you think? Per the forum rules, you must show that you've put some effort into the problem before getting help.

As per the instructions, try converting the 3 \pi \ \mathrm{\frac{rad}{sec}} to more common, everyday units. Then do a google search. See what you come up with.
 
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I apologize, I’m new to the forum but this is what I’ve gotten so far, I am not able to identify an object that has an RPMof 90.
15A8AB0F-B7A8-4243-965A-BA53E43DC91C.jpeg
 
Okay, good so far.

Type in "90 rpm" into google search, and see what hits you get.
 
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