Question

In the shown ,two blocks one of mass `5kg` and the other of mass `2kg` are connected by light and inextensible string Pulleys are light an d frictionless Choose the correct statement
.
A. The acceleration of `5kg` mass is `(5g)/(11)ms^(-2)`
B. The acceleration of `2kg` mass is `(5g)/(11)ms^(-2)`
C. Tension in the string is `(12g)/(11)N` .
D. Tension in the string is `(10g)/(11)N` .

Answer 1

Correct Answer - B::C
`5T -5g = 5a_(1)…(1)`
`2g -T =2a_(2)….(2) , 5a_(1) = a_(1)….(3)`
`5T -5g =a_(2) , (10g -5T =10a_(2))/(5g =11a_(2))`
`a_(2) = (5g)/(11) ms^(-2) a_(1) = (g)/(11) ms^(-2)`
.