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Q1. A monorail train approaches a platform at a speed of 10.0 m/s while it blows its whistle. A musician with perfect pitch standing on the platform hears the whistle (its frequency is 261 Hz.). There is no wind and the temperature is a chilly 0 0C.

a) What is the observed frequency of the whistle when the train is at rest?

b) Find the distance between the train and the musician when the train is at rest.

Q2. Suppose a train engineer is climbing a vertical ladder at a speed of 0.2m/s while the train is slowly coasting east at 0.70 m/s. Find out the vector of the engineer relative to the ground in rectangular notation.

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