Question

Neha swims in a100m long pool . she covers 200m in 1 min and 40 sec by swimming from end to the other and back along the same straight path. Find the average speed and average velocity of neha

Answer 1

1) Her average speed:

Average speed = total distance traveled
                               total time taken
    
                         = 200m
                             100 secs
                         2m/s

2) Average velocity:

Average velocity = total displacement
                                 total time taken
 
In this case the displacement is 0. 
                            =   0   
                              100secs
   
                         = 0 m/s