A skater weighting 1000 N states at a speed of 20m/s on ice maintained at 00C. The average
skating area supporting between the skates area supporting the skaters is 0.001 m2 and the
coefficient of friction between the skates and ice is 0.02. What will be the average thickness of a
film of water existing at the interface between the skater and ice? (Take dynamic viscosity of water as 0.001 Ns/m2)
(a) 10-5 m
(b) 10-6 m
(c) 10-7 m
(d) Not possible to estimate since there cannot be a possibility of formation of a thin film of water at the interface