In the figure shown, a balloon is pressed against a wall. It is in equilibrium and maximum compresed state.$\vec F_1\,=$ force of balloon on hand of man $;$ $\vec F_2\,=$ force of balloon on wall $;$ $\vec F_3\,=$ friction $;$ $\vec F_4=$ weight of balloon. Choose the correct statement.
$\vec {F_1}$ and $\vec {F_2}$ are action reaction pairs.
$\vec {F_3}$ and $\vec {F_4}$ are action reaction pairs.
$\vec {F_2}$ and $\vec {F_3}$ are action reaction pairs.
$\vec {F_4}$ and gravitational force exerted by balloon on earth are action reaction pairs.
A mass of $100\,kg$ is moved with uniform velocity under the influence of force $F$, then the force acting on the beam due to string connected to the ceiling ............ $N$
Three forces starts acting simultaneously on a particle moving with velocity $\vec v.$ These forces are represented in magnitude and direction by the three sides of a triangle $ABC$ (as shown). The particle will now move with velocity
Give the magnitude and direction of the net force acting on
$(a)$ a drop of rain falling down with a constant speed,
$(b)$ a cork of mass $10\; g$ floating on water,
$(c)$ a kite skillfully held stationary in the sky,
$(d)$ a car moving with a constant velocity of $30\; km/h$ on a rough road,
$(e)$ a high-speed electron in space far from all material objects, and free of electric and magnetic fields.
A mass of $5\, kg$ is suspended by a rope of length $2\,m$ from a ceiling. A force of $50\,N$ in the horizontal direction is applied at the mid-point of the rope. The angle made by the rope with the vertical, in equilibrium is ........ $^o$