(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Two boxes are set up in a system as shown in the attached picture.

Box 1 - mass = 5 kg

Box 2 - mass = 2 kg

h = 5m

The system is released, and box 2 hits the ground. With a frictionless system, find the total KE before box 2 hits the ground.

2. Relevant equations

I am fairly sure I have to use the conservation of energy, which in this case would be:

(1/2)*m*vf^2=m*g*h

((1/2)*m*vf^2)-(m*g*h)=KE

3. The attempt at a solution

I dont quite understand how to go about this problem with the two box system. I can figure out the boxes force and acceleration, but not what I need.

Thanks,

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# Two Boxes, a pulley, and KE

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