Question

When a man walks at the rate of 3 km/hr, rain appears to fall vertically. The speed of rain is 32km/hr. At what speed man should walk to meet the rain at an angle of 45 with vertical (in km/hr):?

Answer 1

speed of rain is 3km/hr with respect to ground in horizontal as rain have velocity in vertical direction for 45 go by 35 in same direction or 29 in opposite