Forces+in+action

__**Forces in two dimensions**__ An easy system to start with when looking at the forces that cause motion is to examine what happens when objects tavelling in two dimensions, collide (bump into each other).

Look at the simulation in the link below scenario 7 that represents what happens when two objects collide in two dimensions.

Play with the simulation.

When you have got used to the simulation works set up the following three scenarios:

Scenario 1 One ball at rest. No angle of collision. Second ball moving at varying speed. Objects have the same mass.

Scenario 2 One ball at rest. No angle of collision. Second ball's speed does not change. Objects have different masses.

Scenario 3 Balls moving towards each other, same speed, same mass, no angle of collision.

Scenario 4 Balls moving towards each other, same mass, different speeds, no angle of collision.

Scenario 5 Balls moving toward ea﻿ch other, no angle of collision, same speed, different mass.

Scenario 6 One ball at rest. One ball moving with same speed all the time. Balls have same mass. Change the angle of collision.

Scenario 7 Both balls moving with same speed, balls have equal mass, alter the angle of collision.

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[|forces in 2 dimensions]

For each scenario write down the variables you didn't change and write down the changes you made to the variable you did change.

Write a brief description of what happened when the balls collided. Include any numerical results (e.g speeds) that might be important.

Write down any generalisations you can think of about what happens when two objects collide under different circumstances. Add them to the wiki.