Browsing Animations: Momentum, Collisions, KE

4 Animations



Two gliders collide in an elastic collision. The x-coordinate of the center of mass of the system of gliders is shown as a black dot. Play the animation. Click Show Graph. The velocities of the two objects and of the center of mass will be displayed as a function of time. Try collisions for different values of mass and initial velocity. After a while, you should be able to predict the final velocities, given any pair of initial velocities.



One object moving left collides with another moving right. They stick together in the collision. The animation stops as the collision starts. Use conservation of momentum to predict the velocity after collision of the combined blocks. Momentum is a vector, so you have to take into account the direction of the velocity. Also sketch the velocity vs. time graph for the objects.



Create a collision where the combined blocks move to the left after the collision. You can change masses, positions, and initial velocities. After changing the inputs, click the Reset button before playing. Use conservation of momentum to verify the final velocity. Record your data and results.



Two objects collide and stick together.