question_answer 2)

Joseph jogs from one end A to the other end B of a straight 300 m road in 2 minutes 30 seconds and then turns around and jogs 100 m back to point C in another 1 minute. What are Joseph?s average speeds and velocities in jogging, (a) from A to B and (b) from A to C?

Answer:

(a) From A to B.                Time for A to B = 2 min 30 Average speed Average velocity (b) From A to C.                Time taken = A to B + B to C, total distance = 300 + 100 = 400        150 + 60 = 210 sec             Average speed  Average velocity