# 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?

From pont A to B

Distance covered=300mDisplacement=300m

Time taken=2 min 30 sec=(2×60)+30=150 sec

Average speed=Distance coveredTimetaken=300150=2 m/sec

Average velocity=DisplacementTimetaken=300150=2 m/sec

From point A to C

Distance covered=300+100=400m

Displacement=300−100=200m

Time taken=3 min 30 sec=(3×60)+30=210 sec

Average speed=Distance coveredTimetaken=400210=1.90 m/sec

Average velocity=DisplacementTimetaken=200210=0.95 m/sec