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Q.

Consider the system as shown in the figure. The pulley and the string are light and all the surfaces are frictionless. The tension in the string is $(g = 10 m / s^{2})$

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a

1 N

b

5 N

c

0 N

d

2 N

answer is D.

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Detailed Solution

The acceleration of block of mass m₁ is

Question Image

$a = \frac{m_{1}}{m_{1} + m_{2}} g = 5 m / s^{2}$

From FBD of block m₁

Question Image

$\Rightarrow T = m_{1} (g - a) = 1 \times 5 = 5 N$

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Consider the system as shown in the figure. The pulley and the string are light and all the surfaces are frictionless. The tension in the string is g=10m/s2