a block is lying on the table what is the angle between the action of the book on the - Physics -

Question

a block is lying on the table what is the angle between the action
of the book on the table and the reaction of the table on the book?

Arfat · Answer

since book is at rest so force exerted by book will be equal to
reaction force making a striaght line, hence making an angle of 180
deg

a block is lying on the table .what is the angle between the action of the book on the table and the reaction of the table on the book?