Question

conduct an experiment to find out the effect of roughness friction in lab activity
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Answer 1

Effect of roughness on frictional force:

1.Choose three surfaces with different levels of roughness.

2.Roll a ball along these surfaces.

3.Record the time taken for the ball to come to rest and also the distance travelled by the ball.

4.From the recorded data, we will notice that value of speed drops with increase in roughness.

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