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Standard XII

Physics

Free Body Diagrams

Three blocks ...

Question

Three blocks of masses 2 kg, 3 kg and 5 kg are connected to each other with light string and are then placed on a frictionless surface as shown in the figure. The system is pulled by a force F=10 N then tension T1=

1 N

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5 N

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8 N

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10 N

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Solution

The correct option is C
8 N

$T_{1} = (\frac{m_{2} + m_{3}}{m_{1} + m_{2} + m_{3}}) g = \frac{3 + 5}{2 + 3 + 5} \times 10 = 8 N$

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Three blocks of masses 2 kg, 3 kg and 5 kg are connected to each other with light string and are then placed on a frictionless surface as shown in the figure. The system is pulled by a force F=10 N then tension T1=

The correct option is C 8 N T1=(m2+m3m1+m2+m3)g=3+52+3+5×10=8 N

The correct option is C
8 N

$T_{1} = (\frac{m_{2} + m_{3}}{m_{1} + m_{2} + m_{3}}) g = \frac{3 + 5}{2 + 3 + 5} \times 10 = 8 N$