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If a bear runs at a speed of 54.078 km/h, then increased its speed two-hundredths of a kilometer per hour, it would then be running at a speed of 54.098 km per hour.
Velocity = Frequency * Wavelength. If the wavelength increases and the frequency stays the same, then the speed of the wave will increase.
The wavelength would increase by the same proportion.
Both the speed and velocity have increased as a result of acceleration.