Register to reply

Latent heat of fusion of ice

by physicsss
Tags: fusion, heat, latent
Share this thread:
Sep6-05, 10:15 PM
P: 319
A 58.0 kg ice-skater moving at 6.25 m/s glides to a stop. Assuming the ice is at 0C and that 53.5 percent of the heat generated by friction is absorbed by the ice, how much ice melts?

Should I first calculate the work? I know I need to use Delta U= Q-W...but what is Delta U in this case?
Phys.Org News Partner Science news on
FIXD tells car drivers via smartphone what is wrong
Team pioneers strategy for creating new materials
Team defines new biodiversity metric
Sep6-05, 10:23 PM
HW Helper
P: 505
53.5% of the kinetic energy is converted to heat energy which is delta U.
Sep6-05, 11:54 PM
P: 319
How do I find Q given to the ice?

Sep7-05, 06:16 AM
Sci Advisor
PF Gold
P: 39,552
Latent heat of fusion of ice

First, calculate the kinetic energy of the skater initially. Since the skater completly loses that energy, it must have gone into heat caused by the friction with the ice.

Find 53.3% of that and apply that to the "heat of melting" of ice.

Register to reply

Related Discussions
Specific heat and latent heat of fusion Introductory Physics Homework 2
Latent heat of Fusion Lab Introductory Physics Homework 2
Specific heat capacity and latent heat of fusion Introductory Physics Homework 4
Latent Heat of Fusion General Physics 5