A ball is dropped from the top of a building. The ball takes 0.5 s to fall past the 3 m length
of window some distance below from the top of building. With what speed does the ball pass the top of window?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
From 
,
Also, 
Subtract Eq. (ii) from Eq. (i), we get
From 
,
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