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Per NCERT §5.8 example, a ball dropped from height h has speed at the ground equal to which value?
A2·g·h directly
B√(2 g h)
C√(g h) only
Dg h direct
Answer & Solution
Correct answer: B. √(2 g h)
NCERT §5.8: mgh = (1/2)mv² ⇒ v = √(2gh). Energy conservation.
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