In: Physics
when the block slides down
we have the weight of the block mg divide into two perpendicular
components at an angle
are
one is mg cos
balanced by normal reaction R
other one is mg sin
acting on the moving down direction of block
and the block moving down on inclined plane experience frictional force opposite to the direction of motion of block
that is fkk
R
k
mg cos
coefficient of kinetic friction
k
tan
tan 300
1/ sqrt (3 )
0.577