Question

NAME THE FORCE WHICH HELPS TO WRITE BY CHALK ON BLACKBOARD

1.MUSCULAR FORCE
2.MAGNETIC FORCE
3.FRICTIONAL FORCE​

Answer 1

Answer:

frictional force..........

Answer 2

Frictional force helps us to write using chalk on black board.

The chalk deposits would not stick to the board and no mark would be left behind, had it been there was no friction.

hope this helps you plz mark my answer as the brainliest