Automobile Has Vertical Radio Antenna 1

An automobile has a vertical radio antenna 1.20 m long. The automobile travels at 65.0 km/h on a horizontal road where the Earth’s magnetic field is 50.0 /T directed toward the north and downward at an angle of 65.0° below the horizontal.
(a) Specify the direction that the automobile should move in order to generate the maximum motional emf in the antenna, with the top of the antenna positive relative to the bottom.
(b) Calculate the magnitude of this induced emf.

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