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A motor cycle starts from rest and accel...

A motor cycle starts from rest and accelerates along a straight path at `2m//s^(2)`. At the starting point of the motor cycle there is a stationary electric siren. How far has the motor cycle gone when the driver hears the frequency of the siren at `94%` of its value when the motor cycle was at rest ? (Speed of sound = `330ms^(-2))`

A

49 m

B

98 m

C

147 m

D

196 m

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The correct Answer is:
B
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