1 Feynman (d., 1998), a leading theoretical physicist in quantum electrodynamics and elementary particle theory. Physics made me sick the whole time I learned it. What I couldn't stand was this shrinking of ever into letters and numbers. Sylvia Plath (d. 1963), moderately well known American writer, in novel, The Bell Jar. 274 Most people have tried, at one time or another, to pick up a tapered object with their fingers or pliers. The effort often fails, and squeezing harder forces the object downward rather than holding it more firmly Suppose that the wedge is symmetrically held, weighs w, and has angle 20 at the top. Suppose that the normal force exerted by each finger is P, and that the coefficient of static friction between finger and wedge is u. (a) Show that P= 2(ucos0 - sin@) (b) If u = 0.5, and 20 = 40, what is P (in terms of w) 3 when the wedge is about to slip? (c) If u = 0.5, what is the largest angle 20 that can be picked up