Home
Class 11
PHYSICS
Two identical blocks of weigth w are pla...

Two identical blocks of weigth w are placed one on top of the other as shown in figure. The upper block is tied to the wall. The coefficient of static friction between B and ground is `mu` and friction between A and B is absent. When `F=mu w`force is applied on the lower block as shown. The tension in the string will be

A

`mu w`

B

`(mu w)/(2)`

C

`0`

D

`2 mu w`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

A block on table shown in figure is just on the wedge of slipping. Find the coefficient of static friction between the block and table top.

Acceleration of block A varies with time as shown in figure the value of coefficient of kinetic friction between block A and B is

Two blocks of masses m and 2 m are placed one over the other as shown in figure.The coefficient of friction between m and 2m is mu and between 2m and ground is (mu)/(3) . If a horizontal force F is applied on upper block and T is tension developed in string, then choose the incorrect alternative.

Block B rests on a smooth surface .The coefficient of static friction between A and B is mu = 0.4 where F = 30 N then Acceleration of upper block is

Four block are arranged on a smooth horizontal surface as shown in figure .The masses of the blocks are given (see the fig ) The coefficient of static friction between the top and the bottom blocks is mu_(s) What is the maximum value of the horizontal force F applied to one of the bottom blocks as shown that makes all four block with the same acceleration ?

Two block A and B are as shown in figure. The minimum horizantal force F applied to the block B for which slipping begins between B and ground is :

Two blocks A and B are lying on the table as shown in the figure. The coefficient of friciton between block A and block B is mu . The coefficient of friction between block B and ground also mu . An external force F is applied in the direction shown. The maximum value of the force F that can be applied without moving the blocks.

The coefficient of static friction between the two blocks shown in figure is mu and the table is smooth. What maximum horizontal forced F can be applied to he block of mass M so that the block move together?

The coefficient of static friction between the two blocks shown in figure is mu and the table is smooth. What maximum horizontal forced F can be applied to he block of mass M so that the block move together?

On a smooth table two blocks of masses 2.5kg and 1.5kg are placed one over the other as shown in figure. If the coefficient of static friction between two blocks is 0.2, the maximum horizontal force to be applied on the lower block so that the two blocks move together is (g = ms^(-2) )