So there is this question i've been having trouble with for the past hour. It involved a child going down a ramp on a sled at and angle theta with a total system of mass. accelerates down a hill of length L during a time interval delta t. (this is literally all the question gives you, other than a really simple diagram which only indicates where the 0 is located)
So far I've figured out that a = gsin0.
The question it's asking me is the magnitude of the child's velocity is. (choices) The correct choice is e which is sqrt(gLsin0/2) How do they end up with this?
Any help would be appreciated.