Scouts at a camp shake the rope bridge they have just crossed and observe the wave crests to be 8.00 m apart. If they shake it the bridge twice per second, what is the propagation speed of the waves?

Question

Physics

Dangelo Barrett

7 October, 17:22

Scouts at a camp shake the rope bridge they have just crossed and observe the wave crests to be 8.00 m apart. If they shake it the bridge twice per second, what is the propagation speed of the waves?

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Answers (1)

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Sandra Nolan · Answer 1

distance between two crests = 8 m

The distance between the two crests is called wavelength.

So, wavelength, λ = 8 m

frequency = 2 Hz

Let v be the velocity of wave.

v = f x λ

v = 2 x 8

v = 16 m/s