Question

A block of mass 250 g slides down an incline of
inclination 37° with a uniform speed. Find the work done
against the friction as the block slides through 1m.​

Answer 1

Answer:

Component of acceleration towards displacement =gsin37

0

=

5

3g

=6 m/s

2

Force in the direction of displacement , F=ma

=0.25×6

=1.5N

Work done against the friction ,W=F s=1.5×1=1.5 J