Laws Of Motion

A box of mass \(5 \mathrm{~kg}\) is pulled by a cord, up along a frictionless plane inclined at \(30^{\circ}\) with the horizontal. The tension in the cord is \(30 \mathrm{~N}\). The acceleration of the box is (Take \(g=10 \mathrm{~m} \mathrm{~s}^{-2}\))