18. two masses in the ratio of 1:4 have their speeds in the ratio of 4:5 find the ratio of their kinetic energy

Q. Two masses 1:4 have their speed in the ratio 4:5, find kinetic energy?

Q. Two bodies Of masses $2m$ and $m$ have their kinetic energies in the ratio $8:1$. What is the ratio of their momenta?

Q. Two mass are in ratio of 1:4 have their speed in ratio 4:5 . Find the ratio of K.E.

Q. If two bodies of masses m and 2mhave their moment,a in the ratio 4:1, then find the ratio of their kinetic energy.

Q. Two projectiles of same mass have their maximum kinetic energies in ratio $4:1$ and ratio of their maximum heights is also $4:1$. Then what is the ratio of their ranges?