推 knife100:先幫我翻譯題目.... 10/12 19:31
推 rabbit14175:基本上...物理最難的地方就是看董題目- -董了我還問你 10/12 20:07
推 pths110344:哈哈哈...高先生你也太好笑了吧!! 10/12 20:24
question 1
A rifle pointed at 30? to the horizontal fires a bullet at 250m/s.
If the bullet is accelerated uniformly in the barrel for 0.006s,
find
(a) the magnitude of the acceleration;
(b) its horizontal and vertical components.
question 2
Show that the horizontal and vertical displacement components for
a projectile satisfy an equation of the form △y=a△x+b(△x)^2, so
that the trajectory is a parabola.
小弟不才...煩請物理高手解答
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