There are four forces acting at a point $P$ produced by strings as shown in figure, point $P$ is at rest. The forces $F_1$ and $F_2$ are respectively
$\frac{1}{{\sqrt 2 }}\,N\,,\frac{3}{{\sqrt 2 }}N$
$\frac{3}{{\sqrt 2 }}\,N\,,\frac{1}{{\sqrt 2 }}N$
$\frac{1}{{\sqrt 2 }}\,N\,,\frac{1}{{\sqrt 2 }}N$
$\frac{3}{{\sqrt 2 }}\,N\,,\frac{3}{{\sqrt 2 }}N$
A rod of length $L$ and mass $M$ is acted on by two unequal forces $F_1$ and $F_2 (< F_1 )$ as shown in the following figure.The tension in the rod at a distance $y$ from the end $A$ is given by
A jet of liquid of cross-sectional area $'a'$ strikes a wall making angle $\theta $ with wall. The water strikes with the wall with velocity $v$ and rebounds elastically. If density of liquid be $\rho $, the normal force on the wall is
A small child tries to move a large rubber toy placed on the ground. The toy does not move but gets deformed under her pushing force $F$, which is obliquely upward as shown in the figure.Then,
A body of weight $2\, kg$ is suspended as shown in the figure. The tension ${T_1}$ in the horizontal string (in kg wt) is
A mass of $2\, kg$ suspended with thread $AB$ (figure). Thread $CD$ of the same type is attached to the other end of $2\, kg$ mass. if the lower thread is pulled with a jerk, what happens ?