Linked Questions
13 questions linked to/from Calculate force between rotating objects
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What is the initial angular momentum of a rigid body given an offset impulsed force?
What is the imparted angular momentum to a rigid body if the impulse force is offset by a distance $h$ from the center of mass and the imparted momentum from the center of mass is $mv$?
For a ...
- 2,107
2
votes
4
answers
2k
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Off-center impulse equations [closed]
A rigid steel bar with mass $M$ is hit sideways (very close to its end) by a steel ball with mass $m$ and velocity $v$. What are the equations of motion after elastic impact and how about conservation ...
- 1,300
0
votes
3
answers
2k
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Technique to Solve 2-Dimensional Linear Momentum Problem
Problem: After a completely inelastic collision, two objects of the same mass and initial speed stick together and move away at half their initial speed. Find the angle between their initial ...
- 293
1
vote
1
answer
1k
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Calculate impact force. when A beam starts to fall down with one end hinged and hits an object [closed]
A beam of 10 Kg and length 12 meter starts to fall from initial vertical position with one end hinged.
When Beam's center of mass is dropped 5 meter from earlier position, Beam hits an object with ...
- 11
0
votes
1
answer
787
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Coin inclined at fixed angle toward the horizontal dropped onto table and rebounds [closed]
Here is my question:
A circular coin of radius $a$ falls at speed $u$ (without rotating) onto a smooth horizontal table. The perpendicular to its face makes an angle $\theta$ with the vertical.
...
- 19
2
votes
1
answer
1k
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Breakdown of velocity components of a pivoting domino rotating 90° clockwise
I'm trying to model/qualitatively analyse the velocity components of a toppling domino about a pivot point, to support the results I procured in my experiment.
Essentially I am trying to figure out ...
- 23
2
votes
1
answer
771
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Mechanics of colliding irregular shapes in 2D or 3D
I am familiar with the mechanics of colliding spheres but I am trying to understand how this generalizes to irregular shapes (eg. 2 cubes colliding in 3D space). Clearly this is a more involved ...
- 903
3
votes
2
answers
371
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Does inelastic collision say the ball bounces back to you when thrown at an angle on ground?
I created a bounce simulation using exactly the formula from Wikipedia. The behavior I observe is not what I would expect in two cases:
When two balls hit off-centre, they act the same as if the ...
- 3,107
1
vote
2
answers
266
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Elastic collision resolution between two points [closed]
I'm mainly focused on Computer Science, but I am trying to create one simulation where I need to resolve collisions between points with mass and absolute velocities.
Imagine having:
$point = <v_x, ...
- 113
1
vote
2
answers
315
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How do I deduce the Axis of Rotation of objects while solving rolling,angular momentum questions?
A uniform rod of length $L$ lies on a smooth horizontal table. A particle moving on the table strikes the rod perpendicularly at an end and then stops. Find the distance travelled by the centre of the ...
0
votes
1
answer
227
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Work done by torque on a particle traveling in a straight line
I have been asking and learning about angular momentum. I know that an object traveling straight has ang. momentum about a point of rotation.
Just curious, this example shows the torque acting on a ...
- 389
0
votes
1
answer
122
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Elastic collision between a point and a rotating solid
Consider a pointwise particle with mass $m_1$ and speed $v_1$, which collides with a solid $S$ of mass $m_2$, rotational inertia matrix $J$, speed $v_2$, and rotational velocity $\omega_2$. I denote ...
- 103
-1
votes
1
answer
150
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Rigid rotational dynamics problem [closed]
A thin uniform rod AB of
mass $M$ and length $L$ is free to rotate
in a vertical plane about a horizontal
axle at end A. A piece of putty, also
of mass $M$, is thrown with velocity $V$
horizontally at ...
- 19