A 3-Kg Block Slides at Constant Velocity Down a 32 ^$\circ$

Multiple Choice

A 3-kg block slides at constant velocity down a 32 ^$\circ$ inclined plane.What is the coefficient of friction between the block and the plane?

A) 0.31
B) 1.60
C) 0.0
D) 0.62
E) 1.24