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Plank Movement in Empty Space: Rotate or Move?
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In summary: When you remove the force, the center of mass will continue moving in a straight line at constant speed. And the plank will continue to rotate about its center of mass with a constant angular velocity.Thank you So much Doc Aljaz for your help!
- #2
Doc Al
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What do you think? Apply Newton's 2nd law for translation and for rotation.adjacent said:
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adjacent
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I don't quite understand that.Doc Al said:
- #4
WannabeNewton
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Write down ##F = ma## and ##\tau = I\alpha## for the system you drew.
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adjacent
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OMG!What's ##\tau = I\alpha## ?WannabeNewton said:
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Nugatory
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adjacent said:
Something that doesn't easily hit in google :)
Try googling for "moment of inertia" and "torque"
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Doc Al
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See: Newton's 2nd Law: Rotationadjacent said:
- #8
adjacent
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I have not heard about anything about the moment of inertia or angular acceleration.Anyways,The plank will rotate,Am I right?Doc Al said:
- #9
Doc Al
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The motion of the plank will be a combination of the translation of the center of mass plus rotation about the center of mass. It will rotate as well as translate.adjacent said:
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adjacent
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Then where should I apply a force so the plank will only move straight without rotating?On the center of Mass?Doc Al said:
- #11
Doc Al
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Yes, at the center of mass.adjacent said:
- #12
adjacent
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When I apply the force on the sides it will rotate and translate,What will happen if I remove the force.Will the plank keep rotating and translating or Move in a constant velocity in a straight line?
- #13
Doc Al
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When you remove the force, the center of mass will continue moving in a straight line at constant speed. And the plank will continue to rotate about its center of mass with a constant angular velocity.adjacent said:
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adjacent
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Thank you So much Doc Al
FAQ: Plank Movement in Empty Space: Rotate or Move?
What is the Plank Movement in Empty Space?
The Plank Movement in Empty Space refers to the theoretical concept in physics where a plank or object is able to move or rotate in a vacuum or empty space without any external forces or influences.
Is Plank Movement in Empty Space possible?
As of now, there is no scientific evidence or proof that Plank Movement in Empty Space is possible. However, it is a popular topic of discussion and research in theoretical physics and quantum mechanics.
Can Plank Movement in Empty Space be observed or measured?
Currently, there is no technology or method that can observe or measure Plank Movement in Empty Space. The concept is based on theoretical calculations and models.
What is the significance of Plank Movement in Empty Space?
The concept of Plank Movement in Empty Space is significant in understanding the behavior of matter and energy in the absence of external forces. It also has implications in the study of quantum mechanics and the nature of space and time.
How is Plank Movement in Empty Space related to the Plank Length?
The Plank Length, which is the smallest possible length in the universe, is often used in theoretical calculations and models involving Plank Movement in Empty Space. It is also considered a fundamental unit of measurement in certain theories, such as string theory.