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A stone is dropped from a height of 10cm...

A stone is dropped from a height of 10cm above the top of a window 80 cm high.the time taken by the stone to cross the window is `(g=9.8 ms^(-2))`

A

`(1)/(7)s`

B

`(3)/(7)s`

C

`(2)/(7)s`

D

`(4)/(7)s`

Text Solution

Verified by Experts

The correct Answer is:
C
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