Question

does friction exist between a board and a Chalk​

Answer 1

Explanation:

here is your answer

• When we write on a blackboard then static friction acts in between chalk and the surface of the board. ... It is because, the static friction is a self -adjusting force, that is why when we increase the applied force the chalk starts moving and we able to write.

hope it's helpful for you ☺️

Answer 2

Answer:yes

Explanation: due to the friction anything we write is visible