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## Homework Statement

Find the mass m of the counterweight needed to balance the 1600 kg truck on the incline. Assume all pulleys are frictionless and massless.

Picture attached

## Homework Equations

Conditions for static equilibrium so that angular acceleration=0:

[tex]\sum[/tex]Torque=0

## The Attempt at a Solution

We're learning about rotational dynamics and torque and I honestly cannot make the connection between that and this problem. Please help ):