1. If a net force of 5.00 N acts on a 200 g-book, what is the acceleration of the book? 2. A box is pushed on a floor when a horizontal force of 250 N is applied against a frictional force of 180 N. If the box moves with an acceleration of 1.20 m/s', what is the mass of the box? 3. Three forces Fi, F2, and Fy act on an object of mass 18.0 kg which stays at rest. Determine the values of F1 and F2 if F, = 120 N. F . 4. A hockey puck having a mass of 0.30 kg slides on the frictionless, horizontal surface of an ice rink. Two hockey sticks strike the puck simultaneously, exerting the forces F. on the puck shown in the figure. The force Fi has a magnitude of 5.0 N, and is directed at 0=20" below the x axis. The force F2 has a magnitude of 8.0 N and its MORON direction is = 60 above the x axis. Determine both the magnitude and the direction of the puck's acceleration.5. A net horizontal force of 120 N is exerted on a 15.0- kg box initially at rest. What is the magnitude of the velocity of the box after 3.00 s? 6. An object of mass 70.0 kg is transported to a planet, which has the same mass as the earth, but twice the radius of the earth. (a) What is the mass of this object on the planet? (b) What is the weight of this object on this planet? (c) If, instead, the planet had the same radius as the earth, but twice the mass of the earth, what would be the mass and weight of this object on the new planet? 7. Balls A and B exert attractive gravitational forces on each other. MA = 4MB. A B Which statement is true? (A) FACE> FEMA (B) FAME