A chain lying on an absolutely smooth table, half of it hanging over the edge of the table as shown in figure $(a)$. The time it takes to slip off the table is affected if two equal weights be attached, one to each end as shown in figure $(b)$ .
$t_a$ : time taken to slip in situation $'a'$
$t_b$ : time taken to slip in situation $'b'$
$t_a > t_b$
$t_a < t_b$
$t_a = t_b$
cannot be determined
Write condition of equilibrium when three force act on a particle.
A uniform sphere of weight $W$ and radius $5\, cm$ is being held by a string as shown in the figure. The tension in the string will be
Out of contact force and field force which force is conservative and which force is nonconservative ?
Two masses $m$ and $M$ are attached to the strings as shown in the figure. If the system is in equilibrium, then
$A$ flexible chain of weight $W$ hangs between two fixed points $A$ & $B$ which are at he same horizontal level. The inclination of the chain with the horizontal at both the points of support is $\theta$ . What is the tension of the chain at the mid point?