일반물리학 1 — Kinetic Energy and Work: Problem 23

23 In Fig. 7-25, a constant force \(\vec{F}_a\) of magnitude 82.0 N is applied to a 3.00 kg shoe box at angle \(\phi = 53.0^\circ\), causing the box to move up a frictionless ramp at constant speed. How much work is done on the box by \(\vec{F}_a\) when the box has moved through vertical distance \(h = 0.150\) m?