Question

To maintain your speedWhen there is a tail wind, you may need to do which of the following?

a) Increase speed
b) Decrease speed
c) Maintain the same speed
d) Shift to a lower gear

Answer 1

To maintain speed in the presence of a tail wind, one should typically decrease speed due to the additional push from the wind. An object can accelerate by speeding up, slowing down, or changing direction.

Step-by-step explanation:

To maintain your speed when there is a tail wind, you may need to decrease speed. This is because the tail wind gives your vehicle an additional push, so maintaining the same engine power might actually increase your overall speed. Instead, to keep a constant speed with a tail wind, reducing the power output or speed might be necessary. Three ways an object can accelerate are by speeding up, slowing down, or changing direction. This is outlined in option b of the reference information. In the context of driving alongside a train and experiencing a difference in sound pitch, this is due to the Doppler effect, which would require adjusting speed to match that of the train, if the pitch heard is lower than the actual frequency.