A block is pulled up a rough incline that makes an angle of with the horizontal

PHYSICS · Subjective · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

5\,\text{kg}

block is pulled up a rough incline that makes an angle of

30^{\circ}

with the horizontal. The pulling force has magnitude

40\,\text{N}

and is applied horizontally (parallel to the ground). The block is moved

4.0\,\text{m}

along the incline. The coefficient of kinetic friction between the block and the surface is

0.15

. Calculate the net work done on the block.