I don't think I'm supposed to use energy conservation because we haven't learned that yet and it's not in the chapter that we're currently on. Using the kinematics equations, I can figure out the velocity of the lighter mass when it reaches the pulley if there was no ground. How can I use that...
One mass is 1.2 kg and the other is 3.2 kg. After the heavier mass hits the ground, the lighter mass stops at some unknown height. The lower mass never hits the ground. I can't seem to figure out how much time it takes for the heavier mass to hit the ground or with what velocity it hits the...
Homework Statement
Two masses hanging vertically from a pulley are each initially 1.6 m above the ground and the massless frictionless pulley is 4.8 m above the ground. What maximum height does the lighter object reach after the system is released?
Homework Equations
\vec{F}_{net} =...
Ok I got the right answers using those equations for the forces in the x and y directions but how did you get those equations? I can't figure it out... Thanks!
Ok so I set up a diagram. I have the weight of the chandelier going straight down (mg). I have the tension of the wire off at an angle in the first quadrant. I also have an unknown horizontal force that is perpendicular to the weight that's points to the right. Where does the length of the...
Homework Statement
A 30 kg chandelier hangs vertically from a 4 m long wire. What is the horizontal force necessary to displace the chandelier 0.10 m either way?
Homework Equations
F=ma
The Attempt at a Solution
I tried to figure out the angle made by the change in the...