(a) From end A to end B
Distance covered by Joseph while jogging from A to B = 300 m
Time taken to cover that distance = 2 min 50 seconds = 170 *
Total distance covered = 300 m
Total time taken = 170 *
Displacement = shortest distance between A and B = 300 m
Time interval = 170 *
Average speed = 300/170 = 1.765 m/*
Displacement = shortest distance between A and B = 300 m
Time interval = 170 *
Average velocity = 300/170 = 1.765 m/*
The average speed and average velocity of Joseph from A to B are the same and equal to 1.765 m/*.
(b) From end A to end C
Total distance covered = Distance from A to B + Distance from B to C
= 300 + 100 = 400 m
Total time taken = Time taken to travel from A to B + Time taken to travel from B to C
= 170 + 60 = 230 *
Average speed = 400/230 = 1.739 m/*
Displacement from A to C = AC = AB − BC
= 300 − 100 = 200 m
Time interval = time taken to travel from A to B + time taken to travel from B to C
= 170 + 60 = 230 *
Average velocity = 200/230 = 0.87 m/*
The average speed of Joseph from A to C is 1.739 m/ and his average velocity is 0.87 m/.