Question

A paper placed in between two books can be quickly pulled out without moving the books.which statement explains this phenomenon

Answer 1

I am guessing that this paper explains something that is enacted by the law of inertia which says that a moving thing stays at rest and a body in motion tends to stay in motion if no force is applied to them. The pulling of the paper would require force but it is not put on directly on the books but to the paper alone. 

Answer 2

Answer:

d.) The books have a great deal of inertia and do not move easily.

Explanation:

From Newton's first law we know that for a resting object to change velocity, a force must be exerted on it.

From Newton's second law we know that the acceleration of any object (that is: its change in velocity) caused by a force, depends on how massive the object is. This is known as principle of inertia:

$F=m.a$, where F is the force exerted, m is the object's mass, and a its acceleration.

Massive objects, like books when compared with a paper, are said to have a great deal of inertia, that is, the force (in this case the friction made by the paper) is not enough to accelerate the books.