Question

a block of mass m is released on the top smooth inclined plane

Answer 1

f=¥R=¥mg cos¢
where f is friction force
¥ is coefficient of friction
m is mass
g is acceleration due to gravity
the another force opposite to friction force is
F=mg sin¢
: mg sin¢=mg ¥ cos¢
¥=tan¢

Answer 2

mass =m
distance covered =x