Question

*10. Two masses of 10 kg and 20 kg are connected with an
inextensible string passing over two smooth pulleys as
shown in the figure. The acceleration of 20 kg mass will
be
(1) 10/3 m/s2
(2) 20/3 m/s
(3) 40/9 m/s
(4) 10 m/s2
20 kg

Answer 1

200-t=20a

t=10a

add the equ

200=30a

a=20 m/s-2

3