hi there, new member and this is a bit off a puzzle to me (this isnt homework its something im trying to use for a little simulation game haha)(adsbygoogle = window.adsbygoogle || []).push({});

ok so the puzzle involves a ball being projected, i am wanting to find the minumum hight it can travell with the longest distance (does that make sence)

so i started of using suvats

u = 45 (45 sin theta in vertical, 45 cos theta in horizontal)

a (in vertical) = - 9.8

s = ?

t = ?

v = ?

so tried to do a bit of simutationas eqations with the vertical eqation. i reckond that at half the time the ball would be at its greatest, so i put in for t - t=0.5t int the eqation s=0.5ut-4.9t^2

i then did a bit of differentation to find a when gradient = 0 and got t and sin theta. made a simulatanios EQ with my horizontal. and got theta = 81.7 DEG

i knew that wasnt right haha

could anybody think of an alternitive way or what i should do? is it solvable even?.. is the Q. understandable? haha (been up a long time)

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# Homework Help: New memeber. ball trajectory puzzle

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