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A 55 kg ice skater is gliding along at 3.5 m/s. 5 seconds later her speed...

A 55 kg ice skater is gliding along at 3.5 m/s. 5 seconds later her speed has dropped to 2.9 m/s.

a) What is the magnitude of the kinetic friction acting on her skates? Ignore!ofair.

b) What is the coefficient of friction between the metal skate blade and the ice?
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