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OpenStudy (anonymous):
The kinematics equation for vertical motion (ignoring air resistance) is given by , where is the initial position (which is 1.2 above the ground due to the wheels of the cannon), is the initial speed, and is the acceleration due to gravity. the baseball shoots straight upward (at an angle of ) with an initial speed of 20 . How long does it take for the baseball to hit the ground?
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OpenStudy (anonymous):
given by y(t) =y0+ v0t-1/2gt^2
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