Question

a circular cycle track has a circumference of 314 M with AB as one of its diameter .A cyclist travels from AtoB along the circular path with avelocity of constant magnitude 15.7m/s find
a)the distance travelled by the cyclist
b)the displacement of the cyclist if AB represents north-south direction ,A towards north and B towards south ​

Answer 1

A)distance=circumference/2 (or) 2×pi×r/2=pi×r

=314m/2=157m

B)displacement=diameter

2×pi×r=314

22/7×d=314

d=314×7/22

=2198/22

=99.9m(100m)