Question
( m_{1}=20 mathrm{kg} )
FBD of mass ( quad frac{fleft(n_{1}right)}{v_{m_{1}} g} F_{m_{2}}^{F B D text { mass } m_{1}} )
( a_{m 1}=frac{F}{m_{1}} )
( a_{m 1}=frac{180}{20} )
( a m_{1}=9 m 1 s^{2} )

In the arrangement shown in the figure all surfaces are frictionless, pulley and strings are light. The masses of the block are m, = 20 kg and m,= 30 kg. The accelerations of mass m, and m, will be, if F = 180 N m2 (A) am = 9 m/s?; an, = 0 (B) am = 9 m/s?: am, = 9 m/s2 (C) am, = 0; a m2 = 9 m/s2 (D) None of these oli ni nini (o)
Solution
