Three blocks A, B, and C are pulled on a horizontal smooth surface by a force of 80 N as shown in the figure.

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Solution

Q.
Three blocks A, B, and C are pulled on a horizontal smooth surface by a force of 80 N as shown in the figure.

The tensions $T_{1}$ and $T_{2}$ in the string are respectively: [2024]

1 40 N, 64 N

2 60 N, 80 N

3 88 N, 96 N

4 80 N, 100 N

Ans.
(1)

$a = \frac{80}{10} = 8 {m/s}^{2}$

F.B.D of 5 kg

$T_{1} = 5 (a)$

$T_{1} = 5 (8) = 40 N$

$80 - T_{2} = 2 (8)$

$T_{2} = 80 - 16 = 64 N$

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