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# Collisions

### Whoosh

### Cannon Balls

### Collision with a Vertical Spring

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Age 16 to 18

Challenge Level

A ball whooshes down a slide and hits another ball which flies off the slide horizontally as a projectile. How far does it go?

Age 16 to 18

ShortChallenge Level

How high will a ball taking a million seconds to fall travel?

Age 16 to 18

Challenge Level

Coefficients of restitution meet springs in this bouncy problem