A jogger jogs from one end to the other of a straight track in 1.17 min and then back to the starting point in 1.58 min. What is the jogger's average speed at the following points? (Assume the track is 100 m long.)
(a) in jogging to the far end of the track
m/s
Explanation: first you convert minutes to seconds (x60) 1.17m x 60= 70.2 s. to calculate average speed you do distance/time. So you would do 100 m/70.2s = 1.4 m/s
B- 1.05 m/s
Explanation: first you convert minutes to seconds. 1.58m x 60= 94.8s. to calculate the average speed you do distance/ time. 100/ 94.8= 1.05 m/s
C- 0.6 m/s
Explanation: add the times together 70.2s + 94.8s= 165 s to find the average speed you divide total distance by total time 100m/165s= 0.6 m/s
