# Logical result of a collision

• zpodnisn
In summary, the conversation discusses a theoretical problem of determining the motion and energy absorption of two solid objects colliding. The objects have a regular pyramidal frustum shape and collide with their tops. The known factors for the objects include their materials, surface of base/top, mass or height, velocity, and base friction. The conversation also mentions examples of different scenarios and their expected results. The problem is open-ended, but the speaker is seeking opinions on possible algorithms to solve it.

#### zpodnisn

Hello,

I'm sorry that I can't format the thread as intended and for very likely misuse of terms, but I'm a programmer barely remembering anything form physics (and non-native english speaker to boot), and I have a theoretical problem, not an actual homework. However I believe the problem is quite simple.

The problem itself:

two objects collide, I need to get a "logical result" of the collision - motion, energy absorption / damage.

Assumptions:

objects are solid (composed from one material)
objects have shape of regular pyramidal frustum, collide with tops
motion vectors are directly opposite, centres of mass are residing on a line and stay on the line after collision

Known for objects:

materials
surface of base / top
mass or height
velocity
base friction

everything else can be ignored or have a default value assumed

Examples:

a thrown pebble hits a wooden crate. Results: pebble is bounced back
a thrown axe hits a wooden crate. Results: crate is cut, axe stopped
a fired bullet hits a wooden crate. Results: crate is pierced, bullet continues moving
a stopping car hits a wooden crate. Results: crate is bounced forward and takes impact damage

If you don't have time/will to provide exact algorithms and formulas, I'd appreciate any opinions on the problem solvability and possible algorithms.

The problem is too open.
You've seen the variation - there are whole libraries written just on material properties.
Narrow the problem down: what do you want to know for?

The problem may seem too open indeed, but I don't need any precise calculations, but rather just basic predictions. Examples I provided are likely to be solved by any human child or moderately trained neural network - all I need is a simple math base behind it.

## What is a logical result of a collision?

A logical result of a collision is the outcome or consequence of the collision, based on the properties and behaviors of the objects involved.

## How is the logical result of a collision determined?

The logical result of a collision is determined by analyzing the physical properties and interactions of the objects involved, such as mass, velocity, and angle of impact.

## What are the different types of logical results that can occur in a collision?

The different types of logical results that can occur in a collision include elastic collisions, inelastic collisions, and completely inelastic collisions.

## Can the logical result of a collision be predicted?

In some cases, the logical result of a collision can be predicted using mathematical equations and physical laws, but there are also factors that may make it difficult to accurately predict the result.

## How does the concept of momentum relate to the logical result of a collision?

Momentum, which is the product of an object's mass and velocity, plays a crucial role in determining the logical result of a collision. The conservation of momentum can help explain the outcome of a collision.