A mass $M$ is suspended by a rope from a rigid support at $A$ as shown in figure. Another rope is tied at the end $B$, and it is pulled horizontally with a force $.......$ with the vertical in equilibrium, then the tension in the string $AB$ is :
$F / \sin \theta$
$F \sin \theta$
$F \cos \theta$
$F / \cos \theta$
Two blocks, each having mass $M$ rest on frictionless surfaces as shown in the figure. If the pulleys are light and frictionless, and $M$ on the incline is allowed to move down, then the tension in the string will be
A trolley is accelerating down an incline of angle $\theta$ with acceleration $g \sin \theta$. Which of the following is correct. $(\alpha$ is the constant angle made by the string with vertical)
A road is $10\,\, m$ wide. Its radius of curvature is $50\,\,m$ . The outer edge is above the lower edge by a distance of $1.5\,\,m$ . this road is most suited for the velocity ......... $m/\sec$
The pulleys in the diagram are all smooth and light. The acceleration of $A$ is $a$ upwards and the acceleration of $C$ is $f$ downwards. The acceleration of $B$ is