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Horizontal and Vertical Components of Projectile Motion

A missile is ...

Question

A missile is fired at $30^{o}$ angle from horizontal with $90 m / s$ find time of flight:

9

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20

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40

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15

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Solution

The correct option is A $9$
$T = \frac{2 u s i n θ}{g}$
$T = \frac{2 \times 90 \times 0.5}{10}$
$T = 9$

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