A block of mass 1

Mass of the block m = 1kg

Angle of inclination =

Coefficient of friction = 0.1

Displacement = 10 m

a) Work done against gravity

=

b) Work done against friction

=

c) Vertical raise in height h

∴ change in P.E.

d) Applying work energy theorem,

-(1)

Putting these in equation (1),

We get,

∴ there is a decrease in the kinetic energy by 41.3 J

e) Applied force F =

Displacement d =

Work done W by the force F is given as

=

=