PE at top=KE at bottom
mgh=1/2 m v^2
mg30/sinTheta= 1/2 mv^2
solve for v.
A water slide can be thought of as being frictionless. Let's say a slider starts from rest and goes down a slide that is 30 m long and is set at a 25 degree incline.
a) Determine the speed of the slider at the bottom of the slide.
b) Explain why you don't need to know the mass of the slider.
5 answers
sorry, what's mg?
mg is mass * acceleration due to gravity, mg is weight.
so i won't have a numerical answer?
yes,notice m divides out. You have to put the values of g and SinTheta to get the answer. I don't serve on silver platters (just blueplate).
1 answer