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A body is projected vertically upwards w...

A body is projected vertically upwards with a velocity 'U'. It crosses a point in its journey at a height 'h' twice, just after 1 and 7 seconds. The value of U in `ms^(-1)` [`g=10 ms^(-2)`]

A

50

B

40

C

30

D

20

Text Solution

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The correct Answer is:
B
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