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Two blocks shown in figure are connected by a heavy uniform rope of mass 4kg. An upward force of 200N is applied as shown. (Take, $g = 9.8 m / s^{2}$ )
What is the tension at the top of the rope?

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20 N

30 N

137.5 N

152 N

answer is C.

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Detailed Solution

$a = \frac{Net pulling force}{Total mass} = \frac{200 - 16 \times 9.8}{16}$

$= 2.7 m / s^{2}$

Two blocks shown in figure are connected by a heavy uniform rope of mass 4 kg. An upward force of 200 N is applied as shown (a) What is the acceleration of

$200 - 49 - T_{1} = 5 a$

$∴ T_{1} = 200 - 5 \times 2.7 - 49$

$= 137.5 N$

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