Examples of kinetic energy
1- Spherical bodies
2- Roller coaster
6- Boxing and impact
7- Opening of doors in the Middle Ages
8- Fall of a stone or detachment
9- Fall of a vase
10- Person on skateboard
11- Rolling polished steel balls
If a hard ball is swung back and released to collide with the next ball, the one at the opposite end will move, if the same procedure is performed but two balls are taken and released, the other end will move. they will swing two balls too.
This phenomenon is known as a near-elastic collision, where the loss of kinetic energy produced by the moving spheres and their collision with each other is minimal.
12- Simple pendulum
A simple pendulum is understood as a particle of mass that is suspended from a fixed point with a thread of a certain length and negligible mass, which is initially in a balanced position, perpendicular to the earth.
When this particle of mass is displaced to a position other than the initial one, and is released, the pendulum begins to oscillate, transforming the potential energy into kinetic energy when it crosses the equilibrium position.
By stretching a flexible material, it will store all the energy in the form of elastic mechanical energy.
If this material is cut at one end, all the stored energy will be transformed into kinetic energy that will pass to the material and then to the object that is at the other end, causing it to move.
When water falls and cascades it is because of potential mechanical energy generated by height and kinetic energy due to its movement.
In the same way, any current of water such as rivers, seas or running water releases kinetic energy.
Wind or moving air generates kinetic energy, which is used to help propel sailboats.
If the amount of wind reaching the sail is greater, the sailboat will have more speed.
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