Motion in a Plane
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A boy throws a ball into air at 45 ∘ from the horizontal to land it on a roof of a building of height H . If the ball attains maximum height in 2 s and lands on the building in 3 s after launch, then value of H is _ _ _ _ m.
( g = 10 m ∕ s 2 )
[24 jan 2026 Shift 1]
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