What is linear momentum. Represent it in formula form. 

A ball of mass $0.15\, \mathrm{~kg}$ is dropped from a height $10\, \mathrm{~m}$, strikes the ground and rebounds to the same height. The magnitude of impulse imparted to the ball is $\left(\mathrm{g}=10 \,\mathrm{~m} / \mathrm{s}^{2}\right)$ nearly : (In $\mathrm{kg}\, \mathrm{m} / \mathrm{s}$)

Displacement of a particle of mass $2\, kg$ moving in a straight line varies with time as $s  = (2t^3 + 2)\, m$. Impulse of the force acting on the particle over a time interval between $t = 0$ and $t = 1\, s$ is .......... $N-s$

A batsman hits back a ball straight in the direction of the bowler without changing its initial speed of $12 \;m/ s$.

If the mass of the ball is $0.15 \;kg$, determine the impulse (in $N\;s$) imparted to the ball. (Assume linear motion of the ball)

A force of $50\, dynes $ is acted on a body of mass $5 \,g$ which is at rest for an interval of $3 \,seconds$, then impulse is

A body of mass $3\, kg$ hits a wall at an angle of $60^o$ and returns at the same angle. The impact time was $0.2 \;.s$ Calculate the force exerted on the wall