Physics
Grade-9
Easy
Question
A 20 g particle moves in SHM with a frequency of 3 oscillations per second and an amplitude of 5 cm. The total distance does the particle move during one oscillation is:
- 10 cm
- 15 cm
- 20 cm
- 25 cm
Hint:
w=2πf=6π 
The correct answer is: 20 cm
f=3 oscillation per second
w=2πf=6π
In one oscillation the particle moves to one extreme from mean position comes back to mean and then to the other extreme and then to the mean, that means 4 times the amplitude. This accounts to 20 cm.
w=2πf=6π
In one oscillation the particle moves to one extreme from mean position comes back to mean and then to the other extreme and then to the mean, that means 4 times the amplitude. This accounts to 20 cm.
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