In the figure given below, the position-time graph of a particle of mass $0.1 \,Kg$ is shown. The impulse at $t = 2\sec $ is ………. $kg\,m\,{\sec ^{ – 1}}$

A stone is dropped from a height $h.$ It hits the ground with a certain momentum $P.$ If the same stone is dropped from a height $100\%$ more than the previous height, the momentum when it hits the ground will change by  ……….. $\%$

This question has Statement $1$ and Statement $2$. Of the four choices given after the Statements, choose the one that best describes the two Statements.

Statement $1$: If you push on a cart being pulled by a horse so that it does not move, the cart pushes you back with an equal and opposite force.

Statemf'nt $2$: The cart does not move because the force described in statement $1$ cancel each other

A $100\, g$ iron ball having velocity $10 \,m/s$ collides with a wall at an angle $30^°$ and rebounds with the same angle. If the period of contact between the ball and wall is $0.1\, second$, then the force experienced by the wall is  ……….. $N$

The time in which a force of $2 \,N$ produces a change of momentum of $0.4\,kg – m{s^{ – 1}}$ in the body is ……… $\sec$