Question: A 4 2 . 3 kg junior has a potential energy of 7 , 7 8 5 . 4 Joules after climbing the stairs in

A42.3 kg junior has a potential energy of7,785.4 Joules after climbing the stairs in8.9 seconds. What would be the junior's kinetic energy when they hit the ground if they jumped from the same height equal to the top of the stairs?

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