Find the velocity of a wave of period 2 s and wavelength 0.5m. *

The velocity of wave is 0.25m/s

Explanation:

First, you have to find the fequency using the formula, F = 1/Time :

Let t = 2s,

Next, you have to use speed formula, V = f×λ :

Let f = 0.5Hz,

Let λ = 0.5m,

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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