A \(3\,\text{kg}\) block on a rough incline of angle \(37^\circ\) is connected to a hanging mass of \(4\,\text{kg}\). If the coefficient of friction between the \(3\,\text{kg}\) block and the rough incline is \(\mu=0.25\), then the acceleration of the system is
\[
g=10\,\text{m s}^{-2},
\qquad
\sin37^\circ=0.6,
\qquad
\cos37^\circ=0.8
\]