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A 54.0-kg ice-skater moving at 6.4 m/s glides to a stop. Assuming the ice is at 0°C and
Chapter 14, Problem 31P(choose chapter or problem)
Problem 31P
A 54.0-kg ice-skater moving at 6.4 m/s glides to a stop. Assuming the ice is at 0°C and that 50% of the heat generated by friction is absorbed by the ice, how much ice melts?
Questions & Answers
QUESTION:
Problem 31P
A 54.0-kg ice-skater moving at 6.4 m/s glides to a stop. Assuming the ice is at 0°C and that 50% of the heat generated by friction is absorbed by the ice, how much ice melts?
ANSWER:
Solution 31P
Step 1 of 3
Here we have to calculate the amount of ice that melts during the given process of ice skater.
In the given case, we are assuming that all the heat is used to melt the ice rather than warming the water. As per given data, the amount of heat used to melt the ice is half of the kinetic energy, as heat generated due to friction is same as the kinetic energy during sliding.