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A player kickts a foot ball obliquely at...

A player kickts a foot ball obliquely at a speed of `20ms^(-1)` so that its range is maximum. Another player at a distance of 24m away in the direction of kick starts running at that instant to catch the ball. Before the ball hits the ground to catch it. The speed with which the second player has to run is `(g=10ms^(-2))`

A

`4ms^(-1)`

B

`4sqrt(2)ms^(-1)`

C

`8sqrt(2)ms^(-1)`

D

`8 ms^(-1)`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-KINEMATICS-LECTURE SHEET (EXERCISE-V) (Oblique Projectile & Projecting on incline plane ) (Straight Objective Type Questions)
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  2. Two bodies are thrown with the same initial velocity at angles alpha ...

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  3. Two balls are projected simultaneously in same verticle plane from the...

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  4. The heighs y and horizontal distance x covered by a projectle in a ti...

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  5. A ball is thrown with velocity u making an angle theta with the horiz...

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  6. A body is projected with velocity u making an angle theta with the ho...

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  7. A particle is projected from the ground with velocity u making an angl...

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  8. A particle is aimed at a mark which is in the same horizonta plane as ...

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  9. From a point on the ground at a distance 2m from the foot of a vertica...

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  10. A body is projected with a velocity u at an angle of 60^(@) to the ho...

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  11. A player kickts a foot ball obliquely at a speed of 20ms^(-1) so tha...

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  12. A projective has initially the same horizonal velcoity as it would acq...

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  13. When a body is proiected from a level ground the ration of its speed i...

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  14. A particle is projected with velocity 2sqrt(gh) so that it just clea...

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  15. A particle is projected with a certain velocity at an angle alpha abov...

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  16. In the figure. The time taken by the projectile to reach from A to B i...

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  17. A ball is projected horizontal with a speed v from the top of a plane ...

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  18. A plane surface is incilined making an angle theta with the horizonta...

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