Wednesday
April 1, 2015

Homework Help: science-urgent(plz help)!!!!

Posted by -haya- on Monday, April 16, 2007 at 9:15pm.

a hockey stick has a mechanical advantage of 4. if the effort arm(which is the distance between the fulcrum and your pushing hand-effort)is 25cm long, how long is the stick? if your hand is pushing at a speed of 20km/h, how fast will the puck move?

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