Homework Help: Physics/Force

Posted by Eileen on Thursday, October 28, 2010 at 6:18pm.

building a device to shoote a plastic hockey puck with a lever (think pinball) attached to a bungie cord. How much force is needed to propel a plasic hockey puck 30 feet or 40 feet or 50 feet - what formula should I use? Can I calculate the force by how much the bungie cord stretches?

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