Question

kindly don't swap
swap = all ans get deleted

Do you think that resistance to the motion of book has been reduced ​

Answer 1

Answer:

Activity 1 (NCERT Textbook, Page 146)

Gently push a book on a table [Fig. 12.2(a)]. You observe that it stops after moving for some distance. Repeat this activity pushing the book from the opposite direction [Fig. 12.2 (b)]. Does the book stop this time, too? Can you think of an explanation? Can we say that a force must be acting on the book opposing its motion? This force is called the force of friction.

NCERT Solutions for Class 8 Science Chapter 12 Friction Activity 1

Friction opposes relative motion between the surfaces of the book and the table

Solution:

Yes, the book stops this time too.

After sliding for some time, the book stops. As the surface of the table provides the frictional force to oppose the sliding • of the book.

Yes, we can say that a force must be acting on the book opposing its motion.

Answer 2

Answer:

main aap ko jaan gaya

mere pe gussa bhi kara

shubhverma2 vali id pe

then ok