A push or a pull is called  A) friction  B) pressure 

Correct option is: (A) µs > µk > µr

C) Larger the net force larger the acceleration

The fundamental characteristic of the muscle is contraction. Therefore, muscle can only pull and not push the bone.

Correct option is B) pull

B) sliding friction

C) rolling friction

B) 1 – b, 2 – d, 3 – e, 4 – a, 5 – c

Correct option is A) force

Correct option is B) 2 > 1

A) A-b, B-c, C-a