Home
Class 11
PHYSICS
Three blocks A, B, and C of masses 3M, 2...

Three blocks A, B, and C of masses `3M, 2M`, and M are suspended vertically with the help of spring PQ and TU, and a string RS as shown in fig. If the acceleration of blocks A, B and C is `a_(1), a_(2)` and `a_(3)` , respectively, then

The value of acceleration `a_(1)` at the moment string RS is cut is

A

g, downward

B

g, upward

C

More than g, downwards

D

Zero

Text Solution

Verified by Experts

The correct Answer is:
B
Force in spring can't change abruptly whereas tension in string can change.
Tension in PQ is 6 Mg before cutting RS.
After cutting RS, `a_(1)=(6Mg-3Mg)/(3M)=g`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • NEWTON'S LAWS OF MOTION 1

    CENGAGE PHYSICS|Exercise Integer|5 Videos

  • NEWTON'S LAWS OF MOTION 1

    CENGAGE PHYSICS|Exercise Assertion-reasoning|15 Videos

  • MISCELLANEOUS VOLUME 2

    CENGAGE PHYSICS|Exercise INTEGER_TYPE|10 Videos

  • NEWTON'S LAWS OF MOTION 2

    CENGAGE PHYSICS|Exercise Integer type|1 Videos

Similar Questions

Explore conceptually related problems

Find the relation between acceleration of blocks a_(1), a_(2) and a_(3) .

Two blocks A and B of same mass m attached with a light spring are suspended by a string as shown in fig. Find the acceleration of block A and B just after the string is cut.

Knowledge Check

  • Three blocks A, B, and C of masses 3M, 2M , and M are suspended vertically with the help of spring PQ and TU, and a string RS as shown in fig. If the acceleration of blocks A, B and C is a_(1), a_(2) and a_(3) , respectively, then The value of acceleration a_(2) at the moment spring TU is cut is

    A
    `g//5`, upward
    B
    `g//5` downward
    C
    `g//3`, upward
    D
    Zero

  • Three blocks A, B, and C of masses 3M, 2M , and M are suspended vertically with the help of spring PQ and TU, and a string RS as shown in fig. If the acceleration of blocks A, B and C is a_(1), a_(2) and a_(3) , respectively, then The value of acceleration a_(3) at the moment spring PQ is cut is

    A
    g, downward
    B
    g, upward
    C
    More than g, downwards
    D
    Zero

  • If the blocks are moving as shown in the figure the relation between a_(1) , a_(2) and a_(3) will be.

    A
    `2a_(1)+2a_(2)+a_(3)=0`
    B
    `2a_(1)-2a_(2)+a_(3)=0`
    C
    `2a_(1)-2a_(2)+2a_(3)=0`
    D
    `2a_(2)-2a_(1)+a_(3)=0`

    • Similar Questions

    Explore conceptually related problems

    Two blocks A and B of same mass m attached with a light string are suspended by a spring as shown in fig. Find the acceleration of block A and B just after the string is cut.

    Three blocks arranged with pullwy and spring as shown in fig. If the string connecting blocks m_(2) and m_(3) is cut at point A, find the acceleration of masses m_(1), m_(2) and m_(3) . Just after the string is cut at point A.

    In the pulley-block arrangement shown in figure , find the relation between a_(A),a_(B) and a_(C)

    All the blocks are attached to an ideal rope which passes over an ideal pulley. If acceleration of blocks m_(1),m_(2),m_(3) and m_(4) and a_(1),a_(2),a_(3) and a_(4) respectively then choose the correct option.

    Figure shows two blocks each of mass m system is released from rest. If acceleration of blocks A and B at any instant (not initially) are a_(1) and a_(2) , respectively. Then

    Home
    Profile