Question

An athlete takes 50 s to go once around a circular path of radius 70m at a uniform pace. His speed is 7/5 m/s 5/7 m/s 88 m/s 8.8 m/s ​

Answer 1

Answer:

An athlete takes 50 s to go once around a circular path of radius 70m at a uniform pace. His speed is 7/5 m/s 5/7 m/s 88 m/s 8.8 m/s

Answer 2

Answer:-

Given:- Time taken by an athlete to go around a circular path is 50 sec

             The radius of the circular path is 70m      

To find:- Speed of an athlete=?                  

Solution:- To find the speed of an athlete we will use the formula of speed

Formula:- Speed= $\frac{2\pi r}{t}$    

                 Where r=radius    

                 and t=time            

                 Therefore, speed=$\frac{2*\pi *70}{50}$=8.8 m/s