A body is projected vertically upwards and is reached to a vertical height of 20m and again reached the same point of projection. Then the distance travelled by the body is
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a
20m
b
40m
c
10m
d
5m
answer is B.
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Detailed Solution
Here the body covers the vertical height twice while moving up and moving down. Therefore the total length of the path covered or distance travelled isS=2h=2×20=40m