Physics Question-Determining the coefficient of friction on an inclined plane?

Question

say for instance their is a 1.91N block on a 16 degree incline. It is pushed and moves down the board at a constant speed (no accleration) how do I go about calcualting the coefficient of kinetic friction

Answer 1

Sum of forces must be zero if it moved with a constant speed
or force of friction f equal to downward force F.

so F=f
where
f=uN
N=W cos(16)
F= W sin(16)

u W cos(16) = W sin(16)
finally
u=tan(16)
u=.287

Answer 2

think of touching directly to the acceleration using gravity, it is approximately 9.8. Now think of roughly forces. There are continually 2 forces appearing on an merchandise gravity and customary tension. jointly as the gravity is pulling the ball down, the traditional tension iS pushing it up, type of, perpendicular to the incline. So jointly as the gravity is pulling it down the traditional tension is somewhat bent based upon the perspective, the extra it is bent the quicker it is going