Problem: An ice skater is gliding horizontally across the ice with an initial velocity of +6.40 m/s. The coefficient of kinetic friction between the ice and the skate blades is 0.0829, and air resistance is negligible.
Part A: How much time elapses before her velocity is reduced to +2.92 m/s?
Please show all work and explain your steps to find how much time elapses before her velocity is reduced.