Question

1. A swinging bell eventually stop oscillating due to damping forces caused by air resistance and friction at the point of suspension. Is that the damping oscillation of this swinging bell can be considered as a simple harmonic motion system? Explain.
2. There are two identical set of spring mass system. one mass is pulled so its spring stretched 20cm and the other one is pulled and its spring stretched only 10 cm. The mass are released simultaneously. Which mass reach equilibrium point first?
3. Given T=0.69s, m=9.5g, A 0.821 cm, determine stiffness constant,k.
4. The speed of sound in most solid is somewhat greater than in air, yet the density of solid is nuch greater in order of 10^4 times. Explain using a related equation.

Answer 1