Asked by nicole
                A boy reaches out of a window and tosses a ball straight up with a speed of 15 m/s. The ball is 20 m above the ground as he releases it. Use energy to find the following. 
            
            
        Answers
                    Answered by
            drwls
            
    The following what? How high it goes above the ground? Call that height Ymax.
g*H + Vo^2/2 = g*Ymax
H = 20 m
Vo = 15 m/s
g = 9.81 m/s^2
Solve for Ymax
    
g*H + Vo^2/2 = g*Ymax
H = 20 m
Vo = 15 m/s
g = 9.81 m/s^2
Solve for Ymax
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