WAEC - Physics (2009 - No. 23)
A boat is rocked by waves of speed 30ms-1 whose successive crest are 10m apart. Calculate the rate at which the boat recieves the waves
30s-1
10s-1
3s-1
1s-1
Vysvetlenie
F = \(\frac{v}{\lambda} = \frac{30}{10} = 3s^{-1}\)