Question 5 In the 2010 Winter Olympic Games, Sven Kramer of the Dutch speed skating team adopted a suit marked with dimples on his head. thighs and shoulders. as shown in the photograph. In the 1500 m final. he finished 13 in a time of 1min and 47.40 seconds. For air, take p=121kg/m' and 11=185x10" kg/m.s a) Estimate what relative roughness would you have designed the dimples to have the most acrodynamic effect? b) Estimate how much total energy the dimples you designed would have made him save during the race. ) Estimate the difference in fimishing time due to the dimples. d) Explain why the presence of the dimples improves the aerodynamic characteristics of the skater