question_answer

A motor cycle starts from rest and accelerates along a straight path at \[2 m/{{s}^{2}}\]. At the starting point of the motor cycle there is a stationary electric siren. How far (in metre) 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? \[\left( Speed of sound = 330 m{{s}^{-}}^{1} \right)\]

Answer:

98.01