Question

Friction is alan
(a) self-adjusting force
(b) necessary evil
(c) important force in daily life
(d) all the above are correct​Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.

Answer 1

Answer:

d

Explanation:

All the statements are correct as

(a) Friction is a self adjusting force as it increases or decreases depending on the force applied.

(Static and Kinetic Friction)

(b) It is a necessary evil as it causes our soles of shoes to wear out, parts of machines to wear out etc

(c) It is also imporatant as without it we cannot live. It helps us to walk , write etc