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Snow is falling vertically at a constant speed of 7.8 m/s. (a) At what angle from the vertical and (b) with what speed do the snowflakes appear to be falling as viewed by the driver of a car traveling on a straight road with a speed of 55 km/h?

Snow is falling vertically at a constant speed of 7.8 m/s. (a) At what angle from the vertical and (b) with what speed do the snowflakes appear to be falling as viewed by the driver of a car traveling on a straight road with a speed of 55 km/h?

Grade:11

1 Answers

Kevin Nash
askIITians Faculty 332 Points
6 years ago
234-1009_1.PNG
Round off to two significant figures,
θ = 63°
234-832_1.PNG
Round off to two significant figures,
234-1958_1.PNG
Therefore, the snowflakes will appear to fall at 17 m/s with respect to the observer in car.

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