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For a practical use of that kind of stuff:
That's the equation for the distance something thrown into the air will go. D stands for distance, V for the velocity (speed) it's thrown at, the θ is the angle it's thrown up at, and the G is for gravity (normally 1G, which is 9.81 meters-per-second-per-second, is used). The "sin" is the sine function, which is the away side of the triangle made by that angle divided by the hypotenuse. And the little 2 is squaring the speed (multiplying it by itself).
Sorry if that's kind of confusing, but here's an example in use:
That's assuming it's something being thrown at 35 meters per second (a pretty good fastball), at a 45° angle up (http://i30.tinypic.com/1zn1o1x.gif), under normal gravity, and assuming nothing else gets in the way of the ball (or whatever). With all that, it hits the ground about 91 and three-fourths meters away (though it might bounce a couple times after that or something).
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For a practical use of that kind of stuff:
That's the equation for the distance something thrown into the air will go. D stands for distance, V for the velocity (speed) it's thrown at, the θ is the angle it's thrown up at, and the G is for gravity (normally 1G, which is 9.81 meters-per-second-per-second, is used). The "sin" is the sine function, which is the away side of the triangle made by that angle divided by the hypotenuse. And the little 2 is squaring the speed (multiplying it by itself).
Sorry if that's kind of confusing, but here's an example in use:
That's assuming it's something being thrown at 35 meters per second (a pretty good fastball), at a 45° angle up (http://i30.tinypic.com/1zn1o1x.gif), under normal gravity, and assuming nothing else gets in the way of the ball (or whatever). With all that, it hits the ground about 91 and three-fourths meters away (though it might bounce a couple times after that or something).
Did I lose you with all that gobbeldegook?