Question

answer fast only 4 questions​

Answer 1

Answer:

it's right answer must be c) or d)

Explanation:

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Answer 2

1) frictional force.

2) a) sliding friction.

b) rolling friction.

the rolling friction takes less effort.

3) i) d

ii) a

iii) b

iv) c

4) i) c

ii) a

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