Rain pouring down at an angle a with the vertical has a constant speed of 10 m/s. A woman runs against the rain with a speed of 8 m/s and sees that the rain makes an angle þ with the vertical. Find the relation between a and þ.

Options

A. `tan beta = (8 + 10 sin alpha)/(10 cos alpha)`
B. `tan beta = (8 + 10 cos alpha)/(10 sin alpha)`
C. `tan beta = (10 sin alpha)/(8 + 10 cos alpha)`
D. `tan beta = (10 cos alpha)/(8 + 10 sin alpha)`

Answer

A