Question

Two masses $m_1$ and $m_2$ are connected by a massless string over a fixed pulley. If $m_1 > m_2$ , $m_1$ will move downward and $m_2$ will move upward. What is the acceleration with which the combination o f two masses will move? ( $g =$ acceleration due to gravity)

• A. $0$
• B. $g$
• C. $[(m_1 - m_2)/(m_1 + m_2)] \times g$
• D. $[2m_1m_2 /(m_1 + m_2)] \times g$

Answer 1

Answer: (C)

$[(m_1 - m_2)/(m_1 + m_2)] \times g$

Answer 2

$a=\frac{\left(m_{1}-m_{2}\right)\times g}{\left(m_{1}+m_{2}\right)}$