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zmey [24]
3 years ago
15

A 59kg child starting from rest slides down a water slide with a vertical height of 5.0m. what is the child's speed halfway down

the slide's vertical distance
Physics
1 answer:
KIM [24]3 years ago
6 0
<span>EP (potential energy) = mgy -> (59)(9.8)(-5) = -2,891
   EP + EK (kinetic energy) = 0; but rearranging it for EK makes it EK = -EP, such that EK = 2891 when plugged in.
   EK = 0.5mv^2, but can also be v = sqrt(2EK/m).
   Plugging that in for sqrt((2 * 2891)/59), we get 9.9 m/s^2 with respect to significant figures.</span>
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