On an essentially frictionless, horizontal ice rink, a skater moving at 5.0 m/s encounters a rough patch that reduces her speed by 41% due to a friction force that is 26% of her weight. What is her final speed?

a) 2.95 m/s
b) 3.70 m/s
c) 4.12 m/s
d) 4.63 m/s