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Three blocks of masses m1, m2 and m3 are connected by mass less unstretchable strings on a smooth surface. Tension T2, is

 

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a
2.3 N
b
32 N
c
23 N
d
3.2 N

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detailed solution

Correct option is

Acceleration, a = Fm1+m2+m3                        = 4010+6+4 = 2 ms-2Tension T2 = (m1+m2)a                   = (10 + 6)2 = 32 N


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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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