Question

a person is running on the circular path of radius 2m with uniform speed 10m sec the average velocity of person during movement from A to B is

Answer 1

i think the ans. is 10
total dist. 4 pi
time taken=4 pi/10

avg. velo.=4 pi÷4 pi/10

so the ans. is 10 m/s

hope it helps!!!!

Answer 2

According to the given data, the person travels on the circular path of radius 2 m thereby the distance along the circular path be the circumference of the circle, distance

                                           d = 2 π r

                                      => s = 4 π.

Given the uniform speed s = 10 m/ s thereby, the time taken

                                           t = d / s

                                      => 4 π / 10

Therefore, the average velocity is

                               = d / t => 4 π / ( 4 π / 10 )

=> The average velocity thus be 10 m/s.