College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

تمرين 28

A pouring rain comes straight down with a raindrop speed of 6.0 m/s. A woman with an umbrella walks eastward at a brisk clip of 1.5 m/s to get home. At what angle should she tilt her umbrella to get the maximum protection from the rain