An Object of Mass M with a Certain Initial Speed

Multiple Choice

An object of mass m with a certain initial speed on a horizontal surface comes to rest after traveling a distance of 9.0 m. If the coefficient of kinetic friction between the object and the horizontal surface is 0.20, what is the initial speed of the object? Use g = 10 m/s².

A) 9.8 m/s
B) 6.0 m/s
C) 3.6 m/s
D) 7.2 m/s
E) 8.9 m/s