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A body is projected with an initial velo...

A body is projected with an initial velocity 20 m/s at `60^(@)` to the horizontal. The displacement after 2s is

A

`20[I + (sqrt(3)-1)J]`

B

`20[I-(sqrt(3)-1)J]`

C

`10[I+(sqrt(3)+1)J]`

D

`10[I+(sqrt(3)-1)J]`

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-MOTION IN A PLANE -Exercise -II
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  4. A body is projected with velocity .u. so that the maximum height is th...

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  5. A body is projected with velocity u such that its horizontal range and...

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  6. A stone is projected from the ground with a velocity of 14ms^(-1) one ...

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  7. The height y and horizontal distance x covered by a projectile in a t...

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  8. A body is projected at an angle 30^(@) to the horizontal with speed of...

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  9. A ball is projected obliquely with a velocity 49 ms^(-1) strikes the g...

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  10. The potential energy of a projectile at maximum height is 3/4 times k...

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  11. Two bodies are thrown from the same point with the same velocity of 50...

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  12. A gun fires a bullet at a speed of 140 ms^(-1). If the bullet is to hi...

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  13. A body is projected with velocity 24 ms^(-1) making an angle 30^(@) wi...

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  14. A particle is thrown with a velocity u at an angle theta from the hori...

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

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

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

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

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

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