Question

state any 4 methods to reduce friction​

Answer 1

Answer:

lubrication...... ......

smoothening of surface....

stream lining..........

ball bearing............

Answer 2

Answer:

Reducing frictions; in some situation however, friction is undesrable and we would want to minimise it by the following method;

1. By polishing the surfaces;

2. By streamlining the bodies;

3; By applying oil, greases or lubricants on the surfaces;

4. By sprinkling a soft,slippery line powder on the surfaces;

5. Ball_ bearing or roller bearing;

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