Question

Assume that Clara and Mike run hard at 9 m/s under steady raindrop falling vertically to their head at 4 m/s.
a. At what angle raindrops hit their faces?
b. What is the speed of raindrops hitting their faces?

Answer 1

ah come on, if you can do that cannonball off the cliff this is trivial.
tan angle above horizontal = v/u = 4/9 so angle = 24 deg above from straight ahead
sqrt (16+81) = 9.85