Question

Three blocks A,B and C weighing 1kg, 8kg and 27kg respectively are connected with an inextensible string and are moving on a smooth surface. T^3 is equal to 36n then t^2 is
A) 18n B) 9n C)3.375n d)1.25n

Answer 1

Answer:

Tension in string with value T2 is 9 N

Explanation:

As we know that T3 is the tension in the string by which Block C is pulled forward

So we will have

$T_3 = (m_a + m_b + m_c) a$

so we have

$36 = (1 + 8 + 27) a$

$a = 1 m/s^2$

now we know that tension T2 is pulling the two blocks A and B

so we have

$T_2 = (m_a + m_b) a$

$T_2 = (1 + 8) (1)$

$T_2 = 9 N$

#Learn

Topic : Newton's law

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