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If a child and sled with a combined mass of 60 kg slide down a frictionless slope and if the sled starts from rest and has a speed of 2.20 ms at the bottom what is the height of the hill?
Wiki User
∙ 15y ago
Use the equation vf^2-vi^2/2a=h
vf=2.2
vi=0
a=9.8 because of gravity
so the answer is .247
Wiki User
∙ 15y ago
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