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SoRry But I Have An a PrOblem To start WIth this....

A boy is at a distance d = 6m from the base of a building attempts to throw a ball through a window size that H = 90cm at a height h = 8m.

if the ball's initial speed is v0 = 15m / s,

determine the range of initial angles Ø0 allowing the ball passes through the window. (acceleration of the ball is 9.81 m / s ^2 vertical down)

How Can I DetErmine the Angles??

http://img411.imageshack.us/img411/5928/123gs.jpg [Broken]

ThanKs For The help!!

A boy is at a distance d = 6m from the base of a building attempts to throw a ball through a window size that H = 90cm at a height h = 8m.

if the ball's initial speed is v0 = 15m / s,

determine the range of initial angles Ø0 allowing the ball passes through the window. (acceleration of the ball is 9.81 m / s ^2 vertical down)

How Can I DetErmine the Angles??

http://img411.imageshack.us/img411/5928/123gs.jpg [Broken]

ThanKs For The help!!

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