- 218

- 3

**1. Homework Statement**

If the coefficient of friction between an insect and bowl surface is u (mu) and the radius of bowl is r, what is the max height upto which the insect can crawl in the bowl?

a) r/root(1 + u2)

b) r [ 1 - 1/root(1 + u2)]

c) r [root(1 + u2)]

d)r [ root(1 + u2) -1 ]

Correct Answer: b

**2. Homework Equations**

F=uR

tan theta = u

On a non-horizontal plane,

F=mg sin theta

R=mg cos theta

therefore, net f=mg(sin theta + u cos theta)

**3. The Attempt at a Solution**

Can't get the gist of how to approach this question.

Last edited: