Asked by Toyin
                The mass of a ball is 20g and its height is 8cm  the velocity just before it touches the ground ( take s = 10m/s2)
            
            
        Answers
                    Answered by
            oobleck
            
    Assuming it is at rest at 8cm up, then
KE = PE = mgh
    
KE = PE = mgh
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