2007-02-22 08:20:39 · 11 answers · asked by STORMY K 3 in Games & Recreation ➔ Toys
the energy
2007-02-22 08:22:35 · answer #1 · answered by i hate undies! 4 · 0⤊ 0⤋
Centrifugal energy stored in the yoyo. What is happening is the string is wound backwards. First it unwinds to the end, the yoyo is at the bottom then the yoyo continues to spin in the same direction so it begins to wind up in the other direction.
Look at what side the string is on when you let it go from the top. When it comes back the sting is wound on the other side. So the yoyo spun in only one direction, got to the bottom and wound up on the other side.
2007-02-22 16:24:57 · answer #2 · answered by Ron H 6 · 0⤊ 0⤋
The transferrance of energy by the downward motion of your arm, the release of the yo-yo and it's travel toward the larger mass (gravitational pull) causes inertiall movement downward.
Once it gets to the bottom and the string runs out, the centrifugal force that's gathered in the spinning plastic causes it to keep spinning.
This, in turn, causes it to re-wind the cord and begin it's journey upwards.. but so much energy was lost in the transition of direction that it won't make it all the way up. Which is why you'll have to dip your hand in order to help it along.
Hope that helps!
2007-02-22 16:26:25 · answer #3 · answered by Scallawag 3 · 0⤊ 0⤋
The momentum of the spin and the weight of the yo-yo keep it moving. It does not really roll back as much as keep moving and the string is what it is attached to.
I hope this makes sense.
2007-02-22 16:24:43 · answer #4 · answered by geekgirl33 3 · 0⤊ 0⤋
The string is not tight to the center of the spool. Just a bit of slip.
Thus it spins to bottom of string and CAN be coaxed to spin at bottom of string. A quick jerk however will cause enough frction to occur to let string grab axle & up it goes .http://entertainment.howstuffworks.com/yo-yo1.htm
2007-02-22 16:26:19 · answer #5 · answered by ibeboatin 5 · 0⤊ 0⤋
Well you have the yo-yo spinning of course. All you have to do is break the looseness of the loop at the bottom of the string, and it'll wind itself right up!
2007-02-22 16:23:50 · answer #6 · answered by Anonymous · 0⤊ 0⤋
i'm pretty sure its the motion and energy put into going down that's bounced back into an upward motion...
2007-02-22 16:23:18 · answer #7 · answered by matt k 1 · 0⤊ 0⤋
Centripetal Force. principle of physics.
2007-02-22 16:23:30 · answer #8 · answered by zzzzzzzzzzzzzzzzzz 4 · 0⤊ 0⤋
Its to do with the electric charge in your finger dear!
2007-02-22 16:23:55 · answer #9 · answered by Anonymous · 0⤊ 0⤋
momentum and energy moving from kinetic to potential and then back.
2007-02-22 16:28:19 · answer #10 · answered by wineasy03 6 · 0⤊ 0⤋