Question

You have a 1.5kg book. For both of the following scenarios, 1) draw a free body diagram for the book, 2) write Newton's 2nd law for the book (EĚon obi = mobiãobj expanded), and 3) determine the strength of the frictional force acting on the book. A. Static friction scenario: You hold the book between your palms (held vertically) so that the book does not slip downward at all B. Kinetic frictiona se narices You B. Kinetic friction scenario: You slide the book across a table with a velocity of +1.0m/s, and it comes to a stop 0.5s later.

Answer 1

Drawing FBD and applying Newton's 2nd law

Ans. ince book is at rest Mass of book , m=1.5kg for quits (2) Since book is at rest F =0 {new honi's II low} - (3) Strength of frictional force ma - P = |-sx1.8 = 14.7 N (8) 5 (FBD) - Newton's I law F = ma -fi = ma -0 13 V - Ims. V=0;t=0.58 2 = Votat 0 = italos) ^ = -2 wils? Put in 0 fx = 1,5*2 = 3 N