A body of mass M is held between two identical massless springs, each of spring constant k, on a smooth inclined plane. Find the frequency of small oscillations.

Question

G1 Physics · Accepted Answer

For a displacement along the incline, both springs change length by the same magnitude and their restoring forces add. Therefore kₑ=2k. Gravity only shifts equilibrium and does not change the frequency. Hence f=(1/2π)√(2k/M). Correct option: 3.