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QNEET-2017-Ph-1002: NEET 2017 Physics - Class 11 NEET-2017-Ph-1002 Solution: Two blocks A and B of masses 3m and m respectively are…

Two blocks A and B of masses 3m and m respectively are connected by a massless and inextensible 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

g/3 g

g g

g/3 g/3

g g/3

Multiple Choice Options

A ${g \over 3},g$ 3 g _ , g
B $g, g$ g , g
C ${g \over 3},{g \over 3}$ 3 g _ , 3 g _
D $g,{g \over 3}$ g , 3 g _

Step-by-Step Verified Solution

Before cutting the string kx = T + 3 mg ...(i) T = mg ...(ii) _ kx = 4mg After cutting the string T = 0 a A = 4 m g _ 3 m g 3 m a A = g 3 _ and a B = m g m = g _

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