Problem 38.

Snow is falling vertically at a constant speed of 3 m/s. At what angle from the vertical do the snowflakes appear to be falling as viewed by the driver of a car traveling on a straight, level road with a speed of 60 km/h?

Solution:

At first we need to have the same units, so we need to convert the speed of the car in m/s:

Then we need to find the direction of the velocity of the snowflakes relative to the car:

Then from the triangle shown in the picture we can find angle :

Then