Question

A jogger takes 30 s to run a total distance of 200 m by running 150 m [E] and then 50 m [W]. (a)

Calculate the jogger’s average speed (b) Calculate the jogger’s average velocity​

Answer 1

(a) 6.67 m/s (b) 3.33 m/s

Step-by-step explanation:

if i understood your question correctly, the jogger goes 150m east before going in the opposite direction west for 50m. (see diagram)

in avg speed, we use the total distance (150m + 50m = 200m) and total time (30s)

v = d/t =200/30 =6.67 m/s

in avg velocity, we use the total displacement (150m - 50m = 100m) and total time (30s)

v= d/t = 100/30 = 3.33 m/s