Question

In the given figure, if monkey is accelerating up at 5 m/$s^2$, then acceleration of block on the other side is
(Here the mass of the monkey is 15 kg and mass of the block is 20 kg.)

• A.
  2.5 m/$s^2$ downwards
• B.
  2.5 m/$s^2$ upwards
• C.
  1.25 m/$s^2$ downwards
• D.
  1.25 m/$s^2$ upwards

Answer 1

The correct option is D

1.25 m/$s^2$ upwards
$T-m_{1}g=m_1{a}_1\Rightarrow T=m_1(a_1+g)=225$
$T-mg=m{a}_2\Rightarrow 225-200=20a_2$
$a_2=1.25m/s^2$