Grade 11Wave Motion
A damped harmonic oscillator involves a block (m = 1.91 kg), a spring (k = 12.6 N/m), and a damping force F = - bvx, Initially, it oscillates with an amplitude of 26.2 cm; because of the damping, the amplitude falls to three-fourths of this initial value after four complete cycles. (a) What is the value of b? (b) How much energy has been lost during these four cycles?
A damped harmonic oscillator involves a block (m = 1.91 kg), a spring (k = 12.6 N/m), and a damping force F = - bvx, Initially, it oscillates with an amplitude of 26.2 cm; because of the damping, the amplitude falls to three-fourths of this initial value after four complete cycles. (a) What is the value of b? (b) How much energy has been lost during these four cycles?
