Posted by **dazedandconfused** on Tuesday, September 28, 2010 at 10:12pm.

"You throw a rock at 25m/s at an angle of 25.8511 degrees hitting a target 50m away on the ground in 2.22s." (this is on a flat surface)

Vi=25m/s

Theta=25.8511 degrees

x=50m

t=2.22s

and of course g=9.81m/(s^2)

"How high does the rock fly in the air?"

I know this problem should be a simple plug and solve but my answer does not match the one in the back of my book which is 6.05m. Test coming up and I want to know how to reach that answer or if the book is wrong, what the right answer is.

Please show steps and what equation to use.

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