Home
Class 12
PHYSICS
Acceleration of pulleys and blocks are a...

Acceleration of pulleys and blocks are as shown in the figure. All pulleys & strings are massless & frictionless magnitude of `a_(A)` and `a_(B)` are :
.

A

`a_(A) = 0, a_(B) = 7`

B

`a_(A) = 0, a_(B) = 5`

C

`a_(A) = 0, a_(B) = 12`

D

`a_(A) = 5, a_(B) = 7`

Text Solution

Verified by Experts

The correct Answer is:
C
`1+(2+a_(A))/(2) rArr a_(A)=0` take upward
direction positive
a of pulley at right hand side
`3=(1+a)/(2) rArr a= 5m//_(2)`
`5=(-2 +a_(B))/(2) rArr a_(B) =12 m//s_(2)`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • DAILY PRACTICE PROBLEM

    RESONANCE|Exercise DPP No.22|9 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE|Exercise DPP No.23|20 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE|Exercise DPP No.20|9 Videos

  • CURRENT ELECTRICITY

    RESONANCE|Exercise High Level Problems (HIP)|21 Videos

  • ELECTRO MAGNETIC WAVES

    RESONANCE|Exercise Exercise 3|27 Videos

Similar Questions

Explore conceptually related problems

Find the acceleration blocks in fig. The pulley and the string are massless.

find the acceleration of the block of mass M in the situation shown in figure. All the surfaces are frictionless and the pulleys and the string are light.

Knowledge Check

  • The acceleration of the block (A) and (B) respectively in situation shown in the figure is: (pulleys and string are massless).

    A
    `(2g)/(7)` downward, `(g)/(7)` upward
    B
    `(2g)/(3)` downward, `(g)/(3)` upward
    C
    `(10)/(13)g` downward, `(5g)/(13)` upward
    D
    none of these

  • In the diagram shown in figure, both pulleys and strings are massless. The acceleration of 2 kg block is

    A
    `2.5 m//s^(2) (uarr)`
    B
    `5 m//s^(2) (uarr)`
    C
    `7.5 m//s^(2) (darr)`
    D
    `10 m//s^(2) (uarr)`

  • Find the acceleration of the block of mass m. Assume pulleys are massless and frictionless.

    A
    g/3
    B
    `(2g)/3`
    C
    `g/2`
    D
    None

    • Similar Questions

    Explore conceptually related problems

    There is a system of infinite pulleys and springs.Spring constants are in GP as k 2k 4k 8k.........oo as shown in the figure.All the pulleys are massless frictionless and strings are massless and inextensible.Then time period of small oscillations of the block will be (Mass of block is m ). qquad (in ) (i) 2

    Figure shows an arrangement of pulleys and two blocks. All surfaces are frictionless . All pulleys and strings are massless. All string are smooth and massless. The acceleration of block A is :

    In the arrangement shown, the pulleys and strings are massless. The acceleration of block B is :

    Figure shows an arrangement of pulleys and two blocks. All surfaces are frictionless . All pulleys and strings are massless. All string are smooth and massless. Normal reaction between A and B is :

    Figure shows an arrangement of pulleys and two blocks. All surfaces are frictionless . All pulleys and strings are massless. All string are smooth and massless. Normal reaction between A and ground is :

    Home
    Profile