2-2 Joseph Jogs from one end A to another
End B of a storaight 300m suad in
2 minutes and 3 and then tromy around
And tags loom black to point in
Another minute what are Jozephz
Average speed & velocities in Jagging
From A to B torom A toc
Answers
Answer:
11th
Physics
Motion in a Straight Line
Speed and Velocity
Joseph Jogs from one end A ...
PHYSICS
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?
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ANSWER
From pont A to B
Distance covered=300m
Displacement=300m
Time taken=2 min 30 sec=(2×60)+30=150 sec
Average speed=
Timetaken
Distance covered
=
150
300
=2 m/sec
Average velocity=
Timetaken
Displacement
=
150
300
=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=
Timetaken
Distance covered
=
210
400
=1.90 m/sec
Average velocity=
Timetaken
Displacement
=
210
200
=0.95 m/sec