Question

tr plz say me
do an experiment to show that force of friction is dependent on roughness of surface
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Answer 1

The experiment can be done as follows:

Explanation:

• We can try rolling a ball on a smooth surface.
• Another ball shall be rolled on a surface that is crooked.
• From this experiment, we see that the friction is less on the smooth surface and hence the ball easily rolls on it.
• The friction on the crooked surface is more and hence the ball will not easily roll on a crooked surface.