Asystem of pulleys is used to raise a load of bricks that weighs 1,700 newtons. the force applied to the pulley is 340 newtons. what’s the mechanical advantage of this machine?

The answer is 5

Explanation:

I got this question on a test and this was the right answer

answer: point c: b. 1/2 potential, 1/2 kinetic, point a: 3/4 of its potential energy, point d or b: 3/4 potential, 1/4 kinetic

explanation: i cant explain. it's difficult to explain.

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.