Two masses are connected by a string that is passed over a massless pulley. At t=0, the 6-kg mass is moving upwards at 2m/s, while the 4-kg mass is descending at the same speed.
How far will the 6-kg mass rise before it stops?
The Attempt at a Solution
- I considered the entire system (both blocks) as the system, with no external forces acting - only gravity is at play.
- Same speed is mentioned, so there is no acceleration.
- The tension between the two blocks is the same, as the string is massless.
- I determined that initially: there is KE and PEg - and final state only has PEg. I set both equal to each other, (as indicated on the attached photo tweet), but am having a difficult time determining next-steps.
Any input is appreciated.