- #1
TheRedDevil18
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Homework Statement
A hooter on a motorcycle sounds a note of 6000Hz when the motorcycle is stationary. You detect a shift in frequency of 30Hz when the motorcycle approaches you and then recedes from you. Calculate the speed of the motorcycle.
Speed of sound = 340m/s
Homework Equations
fl = fs(v/v-vs)
The Attempt at a Solution
When motorcycle approaches:
fl = (v/v-vs)
6030 = (340/340-vs)
vs = 16.58m/s
When motorcycle recedes:
fl = (v/v+vs)
5070 = (340/340+vs)
vs = 54.48m/s
Is this correct?