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(A) : Relative velocity is zero when two...

(A) : Relative velocity is zero when two bodies are moving opposite to each other with same velocity
(R) : Relative velocity of a body does not depend on direction of motion.

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

Both (A) and (R) are fals

Text Solution

Verified by Experts

The correct Answer is:
D
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(A):The relative velocity between any two bodies moving In opposite direction Is equal to sum of the velocities of two bodies. (R ):Sometimes relative velocity between two bodies is equal to difference in velocities of the two bodies.

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Knowledge Check

  • (A) The relative velocity between any two bodies moving in opposite direction is equal to sum of the velocities of two bodies. (R ) : Sometimes relative velocity between two bodies is equal to difference in velocities of the two bodies.

    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
    Both (A) and (R) are false

  • (A): Magnitude of average velocity is equal to average speed, if velocity is constant. (R) : If velocity is constant, then there in no change in the direction of motion. Projectile motion .

    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
    Both (A) and (R) are fals

  • In two separate collisions, the coefficient of restitutions d) A is false but B is true e and e are in the ratio 3: 1. In the first collision the relative velocity of approach is twice the relative velocity of separation, then the ratio between relative velocity of approach and the relative velocity of separation in the second collision is,

    A
    `1:6`
    B
    `2:3`
    C
    `3:2`
    D
    `6:1`

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    (A) : A body, whatever its motion is always at rest in a frame of reference which is fixed to the body itself. ( R) : The relative velocity of a body with repsect to itslef is zero.

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