Home
Class 11
PHYSICS
Two points P and Q move in same plane su...

Two points `P` and `Q` move in same plane such that the relative acceleration of `P` with respect to `Q` is zero. They are moving such that the distance betweent them is decreasing. Pick the correct statement for `P` and `Q` to collide.

A

The line joining `P` and `Q` should not rotate.

B

The line joining `P` and `Q` should rotate with constant angular speed

C

The line joining `P` and `Q` should rotate with variable angular speed

D

All the above statement are correct.

Text Solution

Verified by Experts

The correct Answer is:
A

`Q` measures accelerated of `P` to be zero.
`:. Q` measures velocity of `P, i.e., vec(v)_(PQ)` to be constant. Hence `Q` observes `P` to move along straight line.
`:. ` For `P` and `Q` to collide `Q` should observe `P` to move along line `PQ`.
Hence `PQ` should not rotate.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • DAILY PRACTICE PROBLEMS

    RESONANCE|Exercise dpp 22.|8 Videos

  • DAILY PRACTICE PROBLEMS

    RESONANCE|Exercise dpp23|8 Videos

  • DAILY PRACTICE PROBLEMS

    RESONANCE|Exercise dpp 20|8 Videos

  • CURRENT ELECTRICITY

    RESONANCE|Exercise Exercise|54 Videos

  • ELASTICITY AND VISCOCITY

    RESONANCE|Exercise Advanced Level Problems|9 Videos

Similar Questions

Explore conceptually related problems

Perpendiculars are drawn,respectively,from the points P and Q to the chords of contact of the points Q and P with respect to a circle. Prove that the ratio of the length of perpendiculars is equal to the ratio of the distances of the points P and Q from the center of the circles.

Two points P and Q are maintained at the potentials of 10V and -4V, respectively. The work done in moving 100 electrons from P to Q is:

Knowledge Check

  • The statement (p to q) ∨ (q to p) is

    A
    Tautology
    B
    Contradiction
    C
    Neither tautology nor contradiction
    D
    None of these

  • A point P is moving in a plane such that the difference of its distances from two fixed points in the same plane is a constant. The path traced by the point P is a/an

    A
    Circle
    B
    parabola
    C
    Ellipse
    D
    Hyperbola

  • Two points P and Q are maintained at the potentials of 10 V and - 4 V respectively. The work done in moving 100 electrons from P to Q is

    A
    `9.60 xx 10^(-17) J`
    B
    `-2.24 xx 10^(-16) J`
    C
    `2.24 xx 10^(-16)J`
    D
    `-9.60 xx 10^(-17) J`

    • Similar Questions

    Explore conceptually related problems

    The logical statement (p to q) vv (q to ~ p) is :

    Two particles P and Q are moving as shown in the figure. At this moment of time the angular speed of P w.r.t. Q is

    For the statements p and q 'p to q' is read as 'if p then q'. Here, the statement q is called

    The statement (p to q) to [(~p to q) to q] is

    "If p then q" is same as (where p and q are statement)

    Home
    Profile