Oscillating spring

Diagram below shows the displacement – time graph of an oscillating spring.

Rajah di bawah menunjukkan graf sesaran – masa bagi suatu ayunan spring. 
 

The spring is undergoing
Spring itu sedang mengalami 
 
A damping
pelembapan 
 
B resonance
resonans
 
C forced oscillation
ayunan paksaan
 
D interference
interferens 
 
 
 
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 Answer
 
A