सरल आवर्त गति कर रहे एक पिंड का आवर्तकाल 2 s है। इसकी आवृत्ति क्या होगी?

A particle undergoes Simple Harmonic Motion (SHM) with angular frequency ω = 0.5 rad/s and amplitude A = 5 cm. Find the magnitude of acceleration when its displacement from the mean position is x = 4 cm.

A particle moves along the x-axis in simple harmonic motion such that its speed varies as v2 = 100 - x2. Determine the time period T of oscillation.