일반물리학 1 — Oscillations: Problem 9

9 In Fig. 15-24, a block weighing 14.0 N, which can slide without friction on an incline at angle \(\theta = 40.0^\circ\), is connected to the top of the incline by a massless spring of unstretched length 0.450 m and spring constant 135 N/m. (a) How far from the top of the incline is the block’s equilibrium point? (b) If the block is pulled slightly down the incline and released, what is the period of the resulting oscillations?