Newton's Cradle

Last crawled date: 1 year, 11 months ago

Newton’s cradle is a device that demonstrates conservation of momentum and energy using a series of swinging spheres. When one sphere at the end is lifted and released, it strikes the stationary spheres, transmitting a force through the stationary spheres that pushes the last sphere upward. The last sphere swings back and strikes the still nearly stationary spheres, repeating the effect in the opposite direction. The device is named after 17th-century English scientist Sir Isaac Newton. It is also known as Newton's balls or Executive Ball Clicker.

The coefficient of restitution (COR) is the ratio of the final to initial relative velocity between two objects after they collide. It normally ranges from 0 to 1 where 1 would be a perfectly elastic collision. A perfectly inelastic collision has a coefficient of 0, but a 0 value does not have to be perfectly inelastic.

[all of above are wiki staffs :P]

If the restitution coefficient is anything less than 1.0 the motion will be damped with time. And if the restitution coefficient is 1.0 than we'll have a perfect undamped motion. Both the scenarios are animated in the design and you can also find them in the links attached here,

https://www.youtube.com/watch?v=mL6meBb13X8

https://www.youtube.com/watch?v=x-eosa5pr-0

STEP and IGS files are also added