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Time of Flight

A football pl...

Question

A football player throws a ball with a velocity of 50 metre/sec at an angle 30 degrees from the horizontal. The ball remains in the air for $(g = 10 m / s^{2})$

A

2.5 sec

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B

1.25 sec

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C

5 sec

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D

0.625 sec

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Solution

The correct option is C 5 sec
Time of flight = $\frac{2 u s i n θ}{g} = \frac{2 \times 50 \times s i n 30}{10} = 5 s$

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