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Q.

Figure shows two blocks A and B connected to an ideal pulley string system. In this system when bodies are released then: (neglect friction and take g = 10 $m / s^{2}$ )

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a

Tension in string connected to block B is 160 N

b

Tension in string connected to block B is 40 N

c

Acceleration of block A is 2 $m / s^{2}$

d

Acceleration of block A is 1 $m / s^{2}$

answer is B.

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Detailed Solution

Question Image

Applying NLM on 40 kg block
400 - 4 T = 40a
For 10 kg block T = 10(4a)
Solving a = 2 $m / s^{2}$
T = 80 N

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Figure shows two blocks A and B connected to an ideal pulley string system. In this system when bodies are released then: (neglect friction and take g = 10 m/s2)