Collisions

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In this video, Salman Khan of Khan Academy introduces the basic concepts of motion. Part 2 of 3.

Hundreds of free games illustrating basic principles of physics.

Description, equations and diagrams of collisions. Uses momentum and kinetic energy.

This website provides not only an explanation of how the ballistic pendulum can be used to measure the speed of a bullet but also a calculator to check your work. It can be used to explain a similar assembly involving a spring instead of a pendulum as well. You simply substitute the equation for the potential energy of a spring for (M+m)gd -- the potential energy of the pendulum.

Physics

Need to study for Physics? Here are some questions to help you out!!!

Diagrams, equations and description of impulse and momentum.

In this video, Salman Khan of Khan Academy introduces the basic concepts of motion. Part 1 of 3.

Visually shows collisions of different masses and the same masses.

Watch the collisions of two balls.Change relative masses, initial velocity, and angle of the collision. It makes the collision angles very clear, and the controls are sort of fun.

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