Solution - A Man Walking Briskly in Rain with Speed v Must Slant His Umbrella Forward Making an Angle θ with the Vertical. a Student Derives the Following Relation Between θ And V: Tan θ = V And Checks that the Relation Has a Correct Limit: As V →0, θ → 0, as Expected - Significant Figures



      Forgot password?

View all notifications
Books Shortlist
Your shortlist is empty


A man walking briskly in rain with speed must slant his umbrella forward making an angle θ with the vertical. A student derives the following relation between θ and v: tan θ = v and checks that the relation has a correct limit: as v →0, θ → 0, 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 not, guess the correct relation.


You need to to view the solution
Is there an error in this question or solution?

Similar questions

Fill in the blanks :-

The relative density of lead is 11.3. Its density is ....g cm–3or . m–3.

view solution

The photograph of a house occupies an area of 1.75 cm2on a 35 mm slide. The slide is projected on to a screen, and the area of the house on the screen is 1.55 m2. What is the linear magnification of the projector-screen arrangement?

view solution

State the number of significant figures in the following

0.2370 g cm–3

view solution

State the number of significant figures in the following: 

6.032 N m–2

view solution

Just as precise measurements are necessary in science, it is equally important to be able to make rough estimates of quantities using rudimentary ideas and common observations. Think of ways by which you can estimate the following (where an estimate is difficult to obtain, try to get an upper bound on the quantity):-

the wind speed during a storm

view solution

Content BooksVIEW ALL [1]