For collisions between balls, momentum is always conserved (just like in any other collision). For a simplified case assuming no friction (discussed below), we can combine this fact with the elastic-collision assumption to find the trajectory of two colliding billiard balls after impact. The ...
We could sidestep this issue by creating probes that employ novel shapes but endow them with familiar dynamics: a chess piece that glides across a frictionless floor would have the same lateral trajectory as one of our rolling balls. However, this would be a contrived version of physics that ...
its acceleration and speed vary. If that body meets another, then momentum comes into play. To a good approximation, the balls are rigid bodies, and the system is linear. Momentum is the property of a body with a certain mass that moves at a constant speed and is the product of the sp...
Layman understanding Atom movement with added energy Hello there, I've for a long time thought that movement energy is transferred through collisions, one atom hits another and transfers it's momentum (Billiard balls). When they're stuck in a rigid structure like a metal, they vibrate until ...
Such motion is all around us, with examples including rolling balls and wheels, merry-go-rounds, spinning planets and elegantly twirling ice-skaters. Examples of motions that may not seem like rotational motion, but in fact are, include see-saws, opening doors and the turn of a wrench. As...
That’s what I got excited about in my video, because it seemed like the problem of the two balls connected through a hole with string was identical in form to a ball that has to stay on a sphere in a gravitational field. In hindsight I realize that a better way to describe that lat...
Polymath Thomas Young performed many physics and physiology experiments, including measuring his own eyeballs to help him explain astigmatism. (Courtesy: New York Public Library/Science Photo Library) A version of this article was first published as the foreword to the second edition of Andrew Robi...
You may be very surprised to learn how physics affects things we experience every day. I know I was.
balls would swivel back and forth, attracted by the gravitational force that the larger balls exerted on them. Here's a shortvideo clipfrom YouTube that shows you how the experiment was arranged. With this apparatus, Cavendish was able to figure out both the density of Earth and an ...
In the case of 100 balls bouncing on the canvas, we will need to create a ball object with a few more properties. Recall that the ball object we created previously had only x and y properties, and looked like this: var ball = {x:p1.x, y:p1.y}; All the other variables that re...