Question

Helllp
Books X,Y and Z have weights of 5.5 Newtons, 5.9 Newtons, and 19.0 Newtons, respectively. Determine the force which book Z exerts on book Y.
http://www.webassign.net/userimages/NetForceQQ5.png?db=v4net&id=59653

Answer 1

What is the total weight of books X and Y acting on book Z?

Answer 2

11.4 N ??
@mathstudent55

Answer 3

@yellowfellow007 Do you know how to do this????

Answer 4

Alright, so for this you will need to know about Newton's third law. Do you know what it states?

Answer 5

@steve816

Answer 6

https://www.google.com/#q=newton%27s+third+law

Answer 7

The force that books X and Y, due to their combined weight, exert on book Z is exerted by book Z on book Y. If the forces did not equal each other, then there would be motion in the direction of the resultant (sum) of the forces.

Answer 8

You are correct.
Books X and Y have a combined weight of 11.4 N.
They exert a force of 11.4 N in the down direction on book Z.
Book Z exerts a force on book Y.
The force has a magnitude and a direction since a force is a vector.

Answer 9

fun FBDs