Question

(a) Three pendula are formed, one from a wooden ring (hoop), another from a rigid plastic disk, and the last from a rigid foam sphere. If all three have pivot axes on their rim or edge, and each has a radius of 20 cm, what would be the period of oscillation for each (T_R, T_D, and T_S)? (b) If you wanted to make a spring-mass oscillator with the same period as the ring, what would the hanging mass m_H have to be when attached to a spring with a mass m_s = 150 g and a spring constant k_s = 7.5 N/m?

Answer 1

Ringdis k R. Ed T, 2厅 R.

25 n bloc