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A ball is projected obliquely with a vel...

A ball is projected obliquely with a velocity `49 ms^(-1)` strikes the ground at a distance of 245 m from the point of projection. It remained in air for

A

10 sec

B

`5sqrt(2) sec`

C

3 sec

D

2.5 sec

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-MOTION IN A PLANE -Exercise -II
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  8. A particle is thrown with a velocity u at an angle theta from the hori...

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  9. The equation of trajectory of a projectile is y = 10 x - ((5)/(9)) x^(...

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  10. The equations of motion of a projectile are given by x = 36 metre and ...

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  11. An object is projected with a velocity of 20 ms^(-1) making an angle o...

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  12. For a projectile the ratio of maximum height reached to the square of ...

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  13. The speed of a projectile at its maximum height is (3sqrt(3))/(2) time...

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  14. The velocity at the maximum height of a projectile is half of its init...

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  15. A person throws a bottle into a dustbin at the same height as he is 2m...

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  16. A body is projected at angle 30^(@) to horizontal with a velocity 50 m...

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  17. In the above problem range of body is m. [g = 10 ms^(-2)]

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  19. A body is projected at angle 30^(@) to horizontal on a planet with a v...

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