NEET | 2017Basic Maths and Units and DimensionsHard

Question

Two blocks A and B of masses 3 m and m respectively are connected by a massless and 1nextensible string. The whole system is suspended by a massless spring as shown in figure. The magnitudes of acceleration of A and B immediately after the string is cut, are respectively :-
  

Options

A.

g3,g

B.

g,g

C.

g3, g3

D.

g g3

Solution

Before cutting the strip :-

T = mg
After cutting the strip :-

aA=4mg-3mg3m=g3
aB=mgmg

Create a free account to view solution

View Solution Free
Topic: Basic Maths and Units and Dimensions·Practice all Basic Maths and Units and Dimensions questions

More Basic Maths and Units and Dimensions Questions

Initial pressure and volume of a gas are P and V respectively. First it is expanded isothermally to volume 4V and then c...A body has speed V, 2V and 3V in first 1/3 of distance S, seconds 1/3 of S and third 1/3 of S respectively. Its average ...Two wires are made of the same material and have the same volume. The first wire has cross-sectional area A and the seco...Two spherical vessel of equal volume, are connected by a narrow tube. The apparatus contains an ideal gas at one atmosph...What should be the maximum acceptance angle at the air-core interface of an optical fibre if n1 and n2 are the refractiv...