Asked by Anonymous

tarzan, mass 85 kg, swings from a tree on the end of a 20. m vine his feet touch the ground 4.0m below the tree. how fats was he moving when he reaches the ground

Answers

Answered by Damon
(1/2) m v^2 = m g h
so
v = sqrt (2 g h) = sqrt (2*9.81*4)
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