Home
Class 12
PHYSICS
A rod of weight w is supported by two pa...

A rod of weight `w` is supported by two parallel knife edges `A` and `B` and is in equilibrium in a horizontal position. The knives are at a distance `d` from each other. The centre of mass of the rod is at a distance `x` from `A`.

A

50N

B

100N

C

35N

D

20N

Text Solution

Verified by Experts

The correct Answer is:
C
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MOCK TEST 10

    AAKASH INSTITUTE|Exercise Elxample|27 Videos

  • MOCK TEST 12

    AAKASH INSTITUTE|Exercise Example|17 Videos

Similar Questions

Explore conceptually related problems

A rod of weight w is suppoted by two parallel knife edges A and B and is in equilibrium in a horizontal position. The knives are at a distance d from each other. The centre of mass of the rod is at distance x from A. The normal reaction on A is.. And on B is......

A rigid rod of mass m & length l is pivoted at one of its ends. If it is released from its horizontal position, find the speed of the centre of mass of the rod when it becomes vertical.

Knowledge Check

  • A rod of weight W is supported by two parallel knife edges A and B and is in equilibrium in a horizontal position . The knives are at a distance d from each other . The centre of mass of the rod is at distance x from A . The normal reaction on A is

    A
    `(W(d- x))/(x)`
    B
    `(W( d - x))/(d)`
    C
    `(Wx)/(d)`
    D
    `(Wd)/(x)`

  • A uniform metre rod is bent into L shape with the bent arms at 90^@ to each other. The distance of the centre of mass from the bent point is

    A
    `L/(4sqrt(2))m`
    B
    `L/(2sqrt(2))m`
    C
    `L/(sqrt(2))m`
    D
    `L/(8sqrt(2))m`

  • A uniform rod of mass m and length L lies radialy on a disc rotating with angular speed omega in a horizontal plane about vertical axis passing thorugh centre of disc. The rod does not slip on the disc and the centre of the rod is at a distance 2L from the centre of the disc. them the kinetic energy of the rod is

    A
    `(49mL^(2) omega^(2))/24`
    B
    `2 m omega^(2) L^(2)`
    C
    `1/24 m omega^(2)L^(2)`
    D
    `(13 mL^(2)omega^(2))/24`

    • Similar Questions

    Explore conceptually related problems

    A uniform rod of length 2a is placed horizontally on the edge of a table. Initially the centre of mass of the rod is at a distance a//3 from the edge. The rod is released from rest. If the rod slips after it turned an angle theta , find the coefficient of friction between the rod and the table.

    A uniform rod AB hinged about a fixed point P is initially vertical. A rod is released from vertical position. When rod is in horizontal position: The acceleration of the centre of mass of the rod is

    A uniform rod AB of mass m and length l is at rest a smooth horizontal surface An impulse J is applied to the end B perpendicular to the rod in horizontal direction. Speed of particle P at a distance 1/6 from the centre towards A of the rod after time =(pi ml)/(12J) is

    A rod of length 3m and its mass par unit length is directly proportional to the distance x from its one end . The centre of gravity of the rod from that end will be at :-

    A uniform rod AB of mass m and length l is at rest on a smooth horizontal surface. An impulse J is applied to the end B , perpendicular to the rod in the horizontal direction. Speed of particlem P at a distance (l)/(6) from the centre towards A of the rod after time t = (pi m l)/(12 J) is.

    Home
    Profile