Physics, asked by sakshi1345, 8 months ago

Q9. Which of the following measures are taken to reduces friction
a) Polishing
b) Streamlining
c) Using ball bearing
d) All the above

Answers

Answered by Anonymous

5

Answer:

d.) All of the above

Explanation:

Polishing, streamlining and using ball bearing all reduce friction as they make the surface smooth.

Answered by captainmani

0

Answer:

using ball bearing

Explanation:

because it changes sliding friction to rolling friction.and it is used in moving parts such as vehicles , etc.

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