Friction#!#Pulley

In the arrangement shown, find the acceleration of each block, tension in the string and reaction in the pulley. The string and pulley are light (massless) (m_(1)gtm_(2)) . Neglect the friction in pulley.

A block of mass m is attached with a massless spring of force constant k. The block is placed over a rough inclined surface for which the coefficient of friction is mu=(3)/(4) . The minimum value of M required to move the block up the plane is (Neglect mass of string, mass of pulley and friction in pulley)

A block of mass m attached with a massless spring of force constant k The block is placed over a rought inclined surface for which the coefficient of friction is 0.5M is released from rest when the spring was unstretched The minimum to move the value of M required to move the block m up the plane is (neglect mass of spring and pulley and friction in pulley)

Questions|Pulley Block Problems Involving Friction|Questions|Two Blocks System

Two blocks A and B of respective masses 6 kg and 4 kg are connected with a string passing over a light friction less pulley as shown in the figure . The coefficient of friction between the block A and horizontal surface is 0.4 . Then the minimum mass of block C which should be placed over A to prevent it from moving is :

A block of mass m is attached with a massless spring of force constant k . The block is placed over a fixed rought inclined surface for which the coefficient of friction is mu=(3)/(4) . The block of mass m is initially at rest . The block is mass M is released from rest with spring in unstretched state. The minimum value of M required to move the block up the plane is ( neglect mass of string and pulley and friction in pulley )

In the arrangement shown in fig neglect the masses of pulleys and string and also friction Calculate acceleration of blocks A and B

The arrangement shown in figure is at rest. An ideal spring of natural length l_0 having spring constant k=220Nm^-1 , is connected to block A. Blocks A and B are connected by an ideal string passing through a friction less pulley. The mass of each block A and B is equal to m=2kg when the spring was in natural length, the whole system is given an acceleration veca as shown. If coefficient of friction of both surfaces is mu=0.25 , then find the maximum extension in 10(m) of the spring. (g=10ms^-2) .

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 :

Find the maximum value of (m//m) in the situation shown in figure so that the system remains at rest. Friction coefficient of both the contacts is mu , string is massless an pulley is friction less.