Physics Problem: Forces on a Pulley

This is the lecture video for my online course. You can find the whole playlist here.    • Physics 01   A pulley is hanging from the ceiling. On the pulley there are two masses, a 1.5 kilogram mass and a 0.5 kilogram mass connected by a string. When the masses are released, what is the tension in the string? If the pulley has a mass of 0.3 kg, what force is needed to connect it to the ceiling?