Question

In the system shown in $Fig.6.373$, $m_A=4m,m_B=3m$ and $m_c=8m$. Friction is absent everywhere. String is inextensible and light. If the system is released from rest, then
Acceleration of block A in horizontal direction is:

• A. $\frac{5}{4}m{s}^{-2}$
• B. $\frac{21}{2}m{s}^{-2}$
• C. $\frac{7}{5}m{s}^{-2}$
• D. $\frac{21}{7}m{s}^{-2}$

Answer 1

The correct option is A $\frac{5}{4}m{s}^{-2}$

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