Question

to a man walking at a rate of 3 kilometre per hour the rain appears to fall vertically when increase speed to 6 kilometre per hour it appears to meet him at an angle of 45 degree with the vertical from the front the actual speed of rain is​

Answer 1

Answer:

sis i dont understand why you are thinking it is the matter of speed its thé matter of slope on which the man is walking

Answer 2

Answer:

Explanation:

lets find adjacent side with help of adjacent angle

tan 45 = opposite / adjacent

1 = 3 / adjacent

adjacent = 3

apply tan theta for second triangle which is adjacent to first triangle

.tan theta = opposite / adjacent

tan theta = 3/3

tan theta = 1

theta = 45

as theta is 45 it is right angled triangle

by pythgoreus theorem

velocity of rain = 3 root 2