In the arrangement shown below pulleys are mass less and frictionless and threads are in responsible block of mass `m_(1)` will remain at rest if :

In the arrangement shown below, pulleys are mass-less and friction-less and threads are in-extensible. Block of mass m_(1) will remain at rest if :

In the arrangement , shown below pulleys are massless and frictionless and threads are inextensible , block of mass m_(1) will remain at rest if

In the arrangement , shown below pulleys are massless and frictionless and threads are inextensible , block of mass m_(1) will remain at rest if

In the arrangement shown the fixed pulley is massless and frictionless. If the acceleration of block of mass 1kg is (30)/(x)m//s^(2) . Find the value of x .

In the arrangement shown the fixed pulley is massless and frictionless. If the acceleration of block of mass 1kg is (30)/(x)m//s^(2) . Find the value of x .

In the arrangement shown in the fig. all pulleys are mass less and the strings are inextensible and light. Block A has mass M. (a) If the system stays at rest after it is released, find the mass of the block B. (b) If mass of the block B is twice the value found in part (a) of the problem, calculate the acceleration of block A.

In the arrangement shown in fig. pulleys are smooth and massless. Threads are massless and inextensible. Find acceleration of mass m_(1) .

In the arrangement shown pulley and thread are mass less. Mass of plate is 20 kg and that of boy is 30 kg. Then :

In the arrangement shown in figure-2.124 pulley A and B are massless and the thread is inextensible. Mass of pulley C is equal to m. If friction in all the pulleys negligible, then :