Question

Identify the surfaces between which friction takes place in the following cases:<br />a. Aspoon is used to stir a glass of milk.<br />b. A boy is walking on a concrete road.<br />C.Aman is turning a door knob to open the door.<br />d. A ship is sailing in water.<br />e. A nail is well-secured in the wall.<br />please answer it fast ...........​

Answer 1

Explanation:

"br" (and any subsequent words) was ignored because we limit queries to 32 words.