ऐसे ऑन साउथ कोरिया person
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Answer:
Total time for which the teacher moves within the room, t = 50 min = 3000 s
In one round the teacher covers = 40 + 40 = 80 ft
So, the total distance covered by the teacher in 10 rounds is = 10 × 80 = 800 ft
Now, average speed = total distance/total time = 800/3000 = (4/15) ft/s
Now, for average velocity, the net displacement of the teacher is zero. Since, he leaves the room through the same door through which he entered, the average velocity will be zero.
one year ago
In one round teacher cover 40 +40 =80 ft
Doin 10 rounds it will cover 80×10 =800
Avg speed =800÷50=16ft/min
Since there was no displacmdisp therefore avg velocity is zero
10 months ago
total speed travelled in 50mon = 800 ft.
average speed = 800/50 ft/min
= 16 ft/min.
At 12:00 noon he is at the door and at 12:50 he is again at the same door.
therefore the displacementduring the 50 mins is 0.
Average velocity is also equal to 0
10 months ago
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