A woman 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 = 1.7 kg and the coefficient of static friction between her hand and the book is μs = 0.53. What is the weight of the book, Fgb in Newtons? What is the minimum force she must apply with each of her hands, Fmin in Newtons, to keep the book from falling?

A block of mass M is suspended at rest by two strings attached to walls, as shown in the figure. The left string is horizontal with tension force T2 and and the right string with tension force T1 makes an angle θ with the horizontal. T1 is measured to be 47 N, and θ = 50.0°. What is the mass of the block, in kg? Use g = 10 m/s2. Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

Two boxes A and B are connected by a lightweight cord and resting on a smooth (frictionless) table. The boxes have masses of 12 kg and 10 kg. A horizontal force of 40 N is applied to the 10 kg box. Find the tension in the cord connecting the boxes. O 27.21 N O 29.21 N O 27.65 N O 21.84 N

A horizontal force of 87.2 N is applied to a 40.5 kg crate on a rough, level surface. If the crate accelerates at 1.23 m/s2, what is the magnitude of the force of kinetic friction (in N) acting on the crate?