Question

A body is moving on a straight road against a frictional force of 5N . After travelling a distance of 1.5 km he forgot the correct path at a round of radius 100m . However, he moves on the circular path for one one by two cycles And then he moved forward up to 2Km . Calculate the work done byvhim

Answer 1

The body moves on a circular path for one and half cycle  so the displacement=200m
so total displacement =1.5km+2.0km+200m
                                    =1500m+2000m+200m
                                    = 3700m
work =force x displacement 
w=fxs
 w=5N x 3700m
w = 18500 joules      

Answer 2

$(1500 + 314 + 2000) \times 5 =$