12 questions linked to/from Off-center impulse equations
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### Rotational mechanics collision problem of a rod and body [duplicate]

Smooth ball of mass m moving with a uniform velocity 0 v strikes a smooth uniform rod AB of equal mass m , lying on a frictionless horizontal table. The ball strikes the rod at the end A, ...
6k views

### What is the proof that a force applied on a rigid body will cause it to rotate around its center of mass?

Say I have a rigid body in space. I've read that if I during some short time interval apply a force on the body at some point which is not in line with the center of mass, it would start rotating ...
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### Motion of a rod struck at one end

Imagine a strong metal rod of uniform density and thickness floating in a weightless environment. Imagine it lies on an X-Y plane, with one end (A) lying at 0,0, and the other end (B) at 0,1. Then it ...
2k views

### Elastic collision between two circles [duplicate]

I am trying to calculate the final velocities of two equal mass 2-dimensional circles after an elastic collision. I have tried to figure it out using formulas I know from high school physics, but ...
262 views

### 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 ...
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### Calculate force between rotating objects

For a physics engine I need to calculate the force that results from rotating objects colliding with each other. I need to get the force that applies to a defined point ($x,y,z$ - coordinates) with a ...
382 views

### 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. ...
206 views

### 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 ...
250 views

### Angular velocity of stick after bullet hits it [closed]

A weightless rigid stick with length $d$ lying on friction-less surface. Mass $m_1$ is attached to one end of the stick and mass $m_2$ is attached to its another end. Bullet with mass $m_0$ and ...
112 views

### 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 ...