Question

A child and sled with a combined mass of 50.0 kg slide down a frictionless slope. If the sled starts from rest and has a speed of 3.40 m/s at the bottom, what is the height of the hill?

Answer 1

m g h = (1/2) m v^2
as you can see the mass has no effect

h = v^2/(2g)

Answer 2

hello I am Astronom - the acceleratin' is acceleratin'

saahzh