Question

Q4: Two bullets are fired at the same time with the same kinetic energy. If
one bullet has twice the mass of the other, which has the greater speed and
by what factor? Which can do the most work?
licbter bullets will have high speeds?​

Answer 1

Answer:

As you can see, to account for the mass being doubled with the same kinetic energy, the velocity has to be less by a factor of sqrt(2).