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0 votes
1 answer
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Uncertainty of the translational effect of a force that does not pass through the center of mass of an object [duplicate]

I am a new learner of Physics, and I am just wondering is the translational effect of a force that does not pass through the center of mass of an object as big as the translational effect of another ...
I_am_Ignorant's user avatar
7 votes
2 answers
8k views

Force applied off center on an object

Assume there is a rigid body in deep space with mass $m$ and moment of inertia $I$. A force that varies with time, $F(t)$, is applied to the body off-center at a distance $r$ from its center of mass. ...
pqn's user avatar
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5 votes
1 answer
506 views

Rigid body rotation apparent energy paradox

I'm doing some calculations on the motion of a rigid body as part of a project, and (as a tangent) I've come across something that I can't quite explain. Case 1: If I apply a force $F$ though the ...
Bamboo's user avatar
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7 votes
4 answers
633 views

Speed resulting from tangentially applying force to solid spheres with different mass distributions

Given are two solid spheres of the same size and weight. They both have their center of mass at their geometric center. One of them (A), however, has most of its ...
Tobias Hermann's user avatar
2 votes
3 answers
4k views

Proof that a force applied to the center of mass is the same as force applied off-center

There is a similar question that gives a bit of an explanation, but little mathematical proof here: force applied not on the center of mass I would like mathematical proof that shows that the ...
Joshua Hyatt's user avatar
3 votes
2 answers
823 views

Extension to continuous in proofs of rigid body mechanics

I'm studying rigid body mechanics and I've seen several proofs of properties related to total angular momentum, kinetic energy, etc. that all regard discrete set of points. For example, to show that ...
pppqqq's user avatar
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2 votes
1 answer
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What happens when a force is not applied on the centre of the mass? [duplicate]

The answer to this question force applied not on the center of mass states that for a force applied not directly on the center of mass will have the same linear acceleration as one applied on the ...
QCD_IS_GOOD's user avatar
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-1 votes
2 answers
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Linear acceleration caused by a force applied outside the center of mass

I´m trying to figure out, how does Newton's first law work when the force is applied outside the center of mass. Does it have any effect on the object's linear acceleration (not rotational)? If it ...
Jakub Vaniš's user avatar
0 votes
2 answers
105 views

After applying a torque (on one side) of a mass in free space, are the rotational and kinetic energy equal?

Consider a mass of arbitrary form that's freely floating in space and stationary in our frame of reference. Can we say that after a force has been applied on one side of the mass, the linear kinetic ...
Deschele Schilder's user avatar
0 votes
5 answers
192 views

Force not applied on center of mass

I have a question about rigid body motion when a force acts on off-center of mass. I read the answer to the post force applied not on the center of mass but I'm still confused. I understood that ...
박주형's user avatar