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What is the time complexity of merge sort?

AO(n)
BO(n log n)
CO(n²)
DO(log n)
AI Solution

Merge sort divides the array into halves recursively (log n levels), merging O(n) elements at each level.

T(n) = 2T(n/2) + O(n) → O(n log n)
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Data Structures87%
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JEE Mains 2024Physics+4 Marks

A ball is thrown vertically upward with initial velocity u = 20 m/s. Using v² = u² + 2as and g = 10 m/s², its position at different times is:

t (s)01234
h (m)01520150
A
15 m
B
20 m
C
25 m
D
30 m
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