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MBA, Ph.D in Management
Harvard university
Feb-1997 - Aug-2003
Professor
Strayer University
Jan-2007 - Present
A rock thrown with speed 10.5 m/s and launch angle 30.0∘(above the horizontal) travels a horizontal distance of d= 17.5 m before hitting the ground. From what height was the rock thrown? Use the value g= 9.800 m/s2 for the free-fall acceleration.
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Find the height yi from which the rock was launched.
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