Solve Mass: Vertical Pully w/ 4kg Weight Accel 2m/s2

[physcisjay011]

Homework Statement

A vertical pully has two weights attached. One of the weights is 4kg while the other weight is unknown. The 4kg weight is heavier and accelerates 2m/s²

Homework Equations

f=ma

The Attempt at a Solution

i have no idea...

 

[_N3WTON_]

What kind of pulley system are we dealing with here? Is it an Atwood's machine, ie, both masses are just hanging from a pulley? Or are we dealing with a pulley system where one mass rests on a table and another hangs from a pulley?

 

[lep11]

First draw free-body-diagrams for both masses. To use the Newton's 2nd law you will need to know the net force acting on each mass.