A Box with a Mass of 10 Kg Is Sliding

Multiple Choice

A box with a mass of 10 kg is sliding along the top of a rough,horizontal table at a speed of 30 m/s.The friction between the box and the table brings the box to rest in a time of 6.0 s.What is the coefficient of friction between the box and the table?

A) 0.20
B) 0.31
C) 0.51
D) 1.0
E) 2.0