Question

Read and study the given actions carefully and answer correctly to "Where the friction is useful?" ___________ i) Striking a match stick ii) Writing with a pencil iii) Pushing a cupboard from one room to another. iv) Sharpening a knife.

1 point

(a) i and ii only

(b) i and iii only

(c) i, ii and iv only

(d) all of the above

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Answer 1

I think the (b) would be the correct answer