NEET-XII-Physics
neet 2020 questions with solutions year:2020
- #25Two bodies of mass `` 4\,kg `` and `` 6\,kg `` are tied to the ends of a massless string. The string passes over a pulley which is frictionless (see figure). The acceleration of the system in terms of acceleration due to gravity (g) is :
(A)g
(B)g/2
(C)g/5
(D)g/10
digAnsr: CAns : The acceleration of the system `` a=\frac{\left(m_{2}-m_{1}\right)g}{m_{1}+m_{2}} `` where `` m_{1}>\,m_{2} ``
`` a=\frac{(6-4)g}{6+4} ``
`` =\frac{2g}{10} ``
`` a=\frac{g}{5} ``