I have a question I'm not even sure how to ask so that it makes sense, but I'll start with this one - you know the saying "bend it like Beckham"? If Beckham were standing in outer space and kicked the ball so as to bend it, with no air friction the trajectory of the ball would not arc, would it? It would just travel in a straight line?
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It would not arc. The bend in the soccer ball is due to different air pressures on different sides of the ball caused by the rotation of the soccer ball. It is the same physics that causes curveballs to curve in baseball.
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Would it be theoretically possible to put a great enough spin on an airborne ball so that (absent the effect of gravity and loss of momentum) it would arc enough to return to it's point of origin, like a boomerang is supposed to do? Or perhaps go into "orbit" around its point of origin?
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I would think that it would make a complete arc, although it may not end up where it started. You would need air, though.
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What about a spinning ball on a solid surface like a billiard or bowling ball? What is the bend due to?
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The amount of "spin power" might dissipate and offer enough
energy to bring it back. It's doesn't seem likely.
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How about a billiard ball? The bowling ball seems to have way too many variables like the holes, different weight blocks, the pin, lane oil, etc. I'd like something simple, preferably in English.
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How about a billiard ball? The bowling ball seems to have way too many variables like the holes, different weight blocks, the pin, lane oil, etc. I'd like something simple, preferably in English.
If you put and "under spin" on the ball by hitting it low and downward at impact, the backward friction
will help to slow and stop the cue ball when it hits. Top spin will work opposite.
Similarly, if you hit it downward to the left at impact, the "leftward" component of the spin will curve the ball to the
left during it's travel.
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durangodawood
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I suspect it has to do with friction between the ball and the table.
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