Displacement vectors of 4 km north, 2km south, 5 km north, and 5km south combine to a total displacement of a 2 km south b 16 km south c.16 km north d 2km north?

Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?