A man walking briskly in rain with speed v must slant his umbrella forward making an angle theta with the vertical. A student derives the following relation between theta and v: tantheta = v and checks that the relation has a correct limit : as vtoo, thetato0, as expected , (we are assuming there is no strong wind and that the rain falls vertically for a stationary man.) Do you think this relation can be correct ? If you, guess the correct relation.

A man walking briskly in rain with speed v must slant his umbrella for

1.	A man walking briskly in rain with speed v must slant his umbrella forward making an angle theta with the vertical. A student derives the following relation between theta and v: tantheta = v and checks that the relation has a correct limit : as vtoo, thetato0, as expected , (we are assuming there is no strong wind and that the rain falls vertically for a stationary man.) Do you think this relation can be correct ? If you, guess the correct relation.
Answer» <html><body><p></p>Solution :tan `<a href="https://interviewquestions.tuteehub.com/tag/theta-1412757" style="font-weight:bold;" target="_blank" title="Click to know more about THETA">THETA</a>` must be dimensionless . The <a href="https://interviewquestions.tuteehub.com/tag/correct-409949" style="font-weight:bold;" target="_blank" title="Click to know more about CORRECT">CORRECT</a> formula is tan`theta = v//v.` where v. is the <a href="https://interviewquestions.tuteehub.com/tag/speed-1221896" style="font-weight:bold;" target="_blank" title="Click to know more about SPEED">SPEED</a> of <a href="https://interviewquestions.tuteehub.com/tag/rainfall-1176708" style="font-weight:bold;" target="_blank" title="Click to know more about RAINFALL">RAINFALL</a>.</body></html>