• Physics
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• Mechanics

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#### Forces

Force is an agent capable of producing acceleration and/or deformation of a body.

#### Newton's laws

Once one knows the forces acting on an object, you can use Newton's laws to understand whether the body will be in movement and the characteristics of this dynamic.

#### Contact forces

The forces between surface, or contact forces, are essential for the analysis of mechanical systems. They are divided into two components: the normal forces and frictional forces.

#### Elastic forces

In nature, it is possible to find different types of materials with different properties. Here we will cover the elastic properties of the materials, which is the tendency to return to its...

#### Universal gravitation

The simple fact of having mass causes objects to attract each other. In some cases, you can consider to be constant the gravitational force that a planet exerts on objects. However, for the...

#### Work and power

Work is a process by which energy can be transformed from one form to another or transferred from one object to another, due to the action of a force.

#### Mechanical energy

Energy is the capacity to do work.

#### Impulse and quant. of mov.

The study of momentum and impulse is useful to solve problems of collisions and explosions.

#### Collisions

A collision is an isolated event where two or more bodies exert forces on each other, in a relatively short time interval.

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