Asked by XOXOX
An 18 kg curling stone sliding on a sheet of ice hits a rough patch on the ice where the coefficient of friction increases from 0.13 to 0.28. It enters this rough patch with a speed of 2.2 m/s and leaves with
a speed of 1.4 m/s. How long is the rough patch?
What are we suppose to do in this question?
a speed of 1.4 m/s. How long is the rough patch?
What are we suppose to do in this question?
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