$A$ graph between kinetic energy $K$ and momentum $P$ of a particle is plotted as shown in the figure. The mass of the moving particle is ........ $kg$.

The graph between $\sqrt{E}$ and $\frac{1}{p}$ is ($E$ = kinetic energy and $p$ = momentum).

An athlete in the Olympic games covers a distance of $100 \ m$ in $10 \ s$. His kinetic energy can be estimated to be in the range

The masses of two substances are $4 \text{ g}$ and $9 \text{ g}$ respectively. If their kinetic energies are the same,then the ratio of their momenta will be

Two particles have masses $m$ and $4m$,and their kinetic energies are in the ratio $2:1$. What is the ratio of their linear momenta?

Two solids $A$ and $B$ of mass $1\, kg$ and $2\, kg$ respectively are moving with equal linear momentum. The ratio of their kinetic energies $(K.E.)_{A} : (K.E.)_{B}$ will be $\frac{A}{1},$ so the value of $A$ will be ..... .