Question

A car has two travellers of masses $m_1$ and $m_2$. If the car moves towards east with acceleration ${}^{\prime }{a}^{\prime }$, find pseudo force on $m_1$ as observed by traveller of mass $m_2$

• A. $m_{1}a\left(\text{West}\right)$
• B. $m_{1}a\left(\text{East}\right)$
• C. $m_{2}a\left(\text{West}\right)$
• D. $m_{2}a\left(\text{East}\right)$

Answer 1

The correct option is A $m_{1}a\left(\text{West}\right)$

We know that
$\text{Pseudo force}\left(F_P\right)=-ma$
$\therefore (-$ signifies opposite direction$)$
Here, $m_1$ is mass of body
$a$ is accelertion of non-inertial frame
hence, $F_P=m_{1}a\left(\text{West}\right)$