Wednesday

July 30, 2014

July 30, 2014

Posted by **Tim** on Monday, February 17, 2014 at 6:52pm.

- Physics -
**Damon**, Monday, February 17, 2014 at 7:10pmshoot straight at the target with a little up angle for drop or shoot almost straight up so it gets the target on the way down. There are two solutions for the equations that yield time for given height of target.

( Fire the ball or lob it :)

Vi = Vo sin T

u = Vo cos T

v = Vi - 9.8 t

v at top = 0

t = Vi/9.8 = (Vo/9.8)sin T

2 t = time in air (Vo/4.9) sin T

range = u (2 T)

= Vo cos T (Vo/4.9) sin T

= (Vo^2/4.9) cos T sin T

if T = 30

sin T = .5 and cos T = .866

but if T = 60

sin T = .866 and cos T = .5

same range

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