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Neglecting the air resistance, the time ...

Neglecting the air resistance, the time of flight of a projectile is determined by

A

`U_("vertical")`

B

`U_("horizontal")`

C

`U = U_("vertical")^(2) +U_("horizontal")^(2)`

D

`U = U(U_("vertical")^(2) +U_("horizontal"))^(1//2)`

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The correct Answer is:
A
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