Question

Fill in the blanks.
1. A frictional force always tends to____________the motion of a body.
2. Friction is caused by the ________
on the surfaces in contact.
3. You can reduce air resistance by giving objects a_______________shape
4. Sole of the shoe is usually grooved to___________the friction.
5. Rolling friction is less than_________.

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Answer 1

Answer:

opposite direction

irregularities

streamlined

increase

static and sliding friction

Answer 2

Answer:

1. opposite

2.rough

3.streamlined

4.increase

5.sliding friction

Explanation:

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