Force is the mutual interaction between the bodies according to:

Action and reaction forces act on

Why can it be said that there is no such thing as an isolated force in nature?

$A$ particle of mass $m$ strikes a wall with speed $v$ at an angle $30^{\circ}$ with the wall elastically as shown in the figure. The magnitude of impulse imparted to the ball by the wall is

The position-time graph of a body of mass $2\, kg$ is as given in the figure. What is the impulse on the body at $t = 0\, s$ and $t = 4\, s$ (in $, Ns$)?

When we jump out of a boat standing in water,it moves: