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(A): The path followed by one projectile...

(A): The path followed by one projectile as observed by another projectile is a straight line in uniform gravitation field.
(R) : The relative velocity between two projectiles at a given place doesn't change with time. Because their relative acceleration is zero.

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

(A) is false but (R) is true

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-MOTION IN A PLANE -Exercise -I
  1. Two particles are projected in air with speed u at angles theta(1) and...

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  2. If a body is projected with angle theta to the horizontal, then ·

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  3. (A): The path followed by one projectile as observed by another projec...

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  4. Two bullets A & B fired simultaneously, horizontally and with differen...

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  5. A number of bullets are fired horizontally with different velocities f...

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  6. For body thrown horizontally from the top of a tower,

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  7. A stone is just dropped from the window of a train moving along a hori...

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  8. A and B are two trains moving parallel to each other. If a ball is thr...

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  9. In a projectile motion the velocity (a) is always perpendicular to t...

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  10. A boy is projected from a point with different angles of projection 20...

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  11. Two particles are projected from the same point with the same speed at...

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  12. A body is projected with an initial speed of 100 sqrt(3) ms^(-1) at an...

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  13. Two bodies are projected at angles 30^(@) and 60^(@) to the horizontal...

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  14. Velocity of the body on reaching the ground is same in magnitude in th...

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  15. A bomber flying horizontally with constant speed releases a bomb from ...

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  16. For a projectile .R. is range and .H. is maximum height

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  17. The equation of motion of a projectile is y=ax-bx^(2) , where a and b ...

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  18. The term centripetal acceleration was proposed by

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  19. Centripetal acceleration is

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  20. Velocity vector and acceleration vector in a uniform circulat motion a...

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