Hello! Your answer would be D. Interference
This is because interference causes vibration!!!
Answer:
I really hope this is right I think this is Diffuse I'm sorry if its worng
Answer:
im not really good at explaining, but i found this website url:
https://www.numerade.com/questions/a-cyclist-travels-from-point-a-to-point-b-in-10-min-during-the-first-20-min-of-her-trip-she-maintain/
same question just with the explanation
To solve this problem it is necessary to apply the equations related to the description of the tangential and angular movement.
The displacement where the speed and acceleration is related is given by the equation:

Where
Initial velocity (0 because start from rest)
t = time
a = Acceleration
We have angular acceleration but not tangential acceleration. Tangential acceleration can be obtained through the relationship



And we have also that the displacement is

Now replacing,




Therefore will take the cord to unwind around 10s