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Questions  

The string between blocks of masses ‘m’ and ‘2m’ is massless and inextensible. The system is suspended by a massless spring as shown. If the string is cut, the magnitudes of accelerations of masses 2m and m (immediately after cutting)

a
g, g
b
g,g2
c
g2,g
d
g2,g2

detailed solution

Correct option is C

For m1, F = ma = m1g ;For m2 , T - m2g = m2a

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A constant force F = m2g/2 is applied on the block of mass m1 as shown. The string and the pulley are light and the surface of the table is smooth. Find the acceleration of m1.


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