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To break out of golf or a Ferrari quick fast?

csrlyj2010-02-14 10:11:24 +0000 #1
heerolee19872010-02-14 10:14:04 +0000 #2
not air resistance (considered to be solutions of differential equations, then, though it is also very simple and is not out here to play) If the operator a hit 200m, a 45-degree angle of the ball, Then the sub-horizontal and vertical velocity is the same, are set to v, the vertical under the action of gravity to G = 9.8m / (s * s) of the acceleration deceleration to zero at speeds up to v (ie landing moment), the required time t = 2v / G, transverse velocity has not changed, has been v, run a distance of 200m, to use when it was before the t (fall Well), the column equations v * t = 200 -> v * (2 * v / G) = 200, solution velocity v = 33 scores m / s, horizontal and vertical synthesis after 33 × 1.414 = 46.662 m / s, equivalent to 167 km / hour. Ferrari sports car of this generation can be run out of all 300 or more an hour.

However, on the acceleration, hey, count hitting time of 0.1 seconds, which is 46/0.1 = 460m / (s * s), the equivalent of 46 G, the most powerful Ferrari f1 car accelerate 2 seconds less than 100 kilometers, or about 2.7 G. Shuang no
332,619,2172010-02-14 10:30:57 +0000 #3
Forced to play golf soon! Not pull force play fast!



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