Physic HW

Normal Force Name: Institution: a) Find the normal force on the book When an object, in this case the book, rests on another object (horizontal surface), it exerts a force perpendicularly onto the surface due to its weight which is as a result of its mass and the gravitational force acting on it. As a direct consequence of Newton’s Third Law, for every action there is a reaction. As such, the surface exacts the exact same force upwards and perpendicular to the book (The Physics Classroom, 2013). That said, the normal force on the book merely equates to the force magnitude exerted by the book on the surface but in the opposite direction along the horizontal surface. Normal force (FN) on the book is; Weight of the book=2.25 KG Gravitational force on the book=9.8m/s2 FN= -mg =-(2.25) (-9.8 m/s2) = 22.05 N b) Suppose you pull up on the book with a 15.0-N force. Now what's thenormal force? Since to the two forces are in the same direction, they are going to reduce the normal force. This is because the...