A. friction force dissipates the energy of motion
B. the frequency of oscillation varies with time
C. the period of oscillation varies with time
D. energy is supplied by some external agency

Correct Answer: Option B

B. the frequency of oscillation varies with time

SEE ALSO  An object moves in a circular path of radius 0.5m with a speed of 1m/s¹. What is its angular velocity?

Copyright warnings! Do not copy.