A Sprinter Must Average 24

Multiple Choice

A sprinter must average 24.0 mi/h to win a 100-m dash in 9.30 s. What is his wavelength at this speed if his mass is 84.5 kg?

A) 7.29 × 10^-37 m
B) 3.26 × 10^-37 m
C) 5.08 × 10^-30 m
D) 1.34 × 10^-30 m
E) None of these choices are correct.