I tried to do this problem with related rates and calculus. We have not done physics with calculus, however. The other way I thought about was using the angular velocity of the board when the stick is taken away. I cannot seem to solve it though.
A common physics demonstration consists of a...
Oh, of course, so the whole problem only depends on the initial and final positions of m3 because gravitiy is a conservative force.
That makes it easier, thanks a lot. I forgot about that section.
I am not sure how to do this problem without using netF=ma.
Three objects with masses, m1 = 5 kg, m2 = 10 kg, and m3 = 15kg, are attached by strings over frictionless pulleys. The horizontal surface is frictionless, and the system is released from rest. Using energy concepts, find the speed...