A Skier Weighing 0

Multiple Choice

A skier weighing 0.80 kN comes down a frictionless ski run that is circular (R = 30 m) at the bottom, as shown. If her speed is 12 m/s at point A, what is her speed at the bottom of the hill (point B) ?

A) 17 m/s
B) 19 m/s
C) 18 m/s
D) 20 m/s
E) 12 m/s