# How can I calculate the acceleration in this system?

#### Noor_Arnaoud

Homework Statement
I failed to understand how to compute acceleration here , where we do have an accelerated pulley holding two masses
Homework Equations
F
ma

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#### archaic

First of all, consider one block of them, and using only variables (don't substitute with numbers), try to find its acceleration.
Hint : What forces are acting upon each block?

#### kuruman

Homework Helper
Gold Member
Alternatively, if you are in an elevator accelerating up with acceleration $a$ and you stand on a scale, your weight reading will be $m(g+a)$. Now imagine the pulley being attached to the ceiling of this elevator and you put $m_1$ and $m_2$ on the scale before attaching them to the rope. What would the scale read? Therefore, ...

"How can I calculate the acceleration in this system?"

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