Posted by H.T on Monday, April 25, 2011 at 8:35am.
Hypothetically, if you were standing on the balcony of an apartment on the 10th level of building and you throw a ball at 30° above the horizontal away from the building at 4.5m/s, how far from the building would the ball land?. The height from which the ball is thrown is approximately 30m.

physics ( help)  bobpursley, Monday, April 25, 2011 at 9:21am
Hypothetically, do you ignore wind and air resistance?
Initial vertical velocity: 4.5sin30
go to the height equation:
hf=hi+InitialVelocityvertical*t1/2 g t^2
hf=30, hi=0 solve for time in air, t.
distance equation
horizonaldistance= 4.5cos30*timeinair
Hypothetically, with no air friction or force.

physics ( help)  Jeff, Wednesday, February 1, 2012 at 8:45pm
First of all your initial vertical velocity is not 4.5 m/s.
it is Viy= 4.5 * sin(30)
and your horizontal = 4.5 * cos(30)
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