The maximum height attained by a ball projected with speed ` 20 ms^(-1)` at an angle `45^(@)` with the horizontal is [take g = `

The maximum height attained by a ball projected with speed ` 20 ms^(-1)` at an angle `45^(@)` with the horizontal is [take g = ` 10 ms^(-2)`]
A. 40 m
B. 20 m
C. 10 m
D. 30 m

The maximum height attained by a ball projected with speed ` 20 ms^(-1)` at an angle `45^(@)` with the horizontal is [take g = ` 10 ms^(-2)`]

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