A toy motorboat moving with constant velocity v vibrates up and down on the surface of a pond. This causes the boat to act as a source of circular water waves of frequency 2.0 Hz. The speed of the waves is $1.5m{s^{ - 1}}$.
A man, standing at the edge of the pond, observes that the waves from the boat approach him with a frequency of 3.0 Hz.
The formula for Doppler effect calculations with sound waves may also be used for water waves.
What is a possible value of v?
1 )
A
B
3 )
C
4 )
D
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