In the system shown in the adjoining figure, the tension $T_2$ is
$g$
$2g$
$5g$
$6g$
The horizontal acceleration that should be given to a smooth inclined plane of angle $sin^{-1}\, (1/l)$ to keep an object stationary on the plane relative to the inclined plane is
A weight can be hung in any of following four ways by using same string. In which case is the string more likely to break is :-
A book is lying on the table. What is the angle between the action of the book on the table and the reaction of the table on the book ............ $^o$
A uniform thick string of length $5\,m$ is resting on a horizontal frictionless surface. It is pulled by a horizontal force of $5\,N$ from one end. The tension in the string at $1\,m$ from the force applied is ......... $N$