Question

A child of mass m is released from rest at the top of a water slide, at height h=8.8 m above the bottom of the slide. Assuming that the slide is frictionless because of the water on it, find the child’s speed at the bottom of the slide

Answer 1

Answer:

From the concept of energy conservation, Ei=Ef

mgh=1/2mv^2

=> v=

$\sqrt{2gh}$

=

$\sqrt{2 \times 9.8 \times 8.8}$

=

$\sqrt{172.28}$

=13.12m/s.