In this problem, we are dealing with the relationship between mass and kinetic energy.

Kinetic energy:

$\overline{){\mathbf{K}}{\mathbf{=}}\frac{\mathbf{1}}{\mathbf{2}}{{\mathbf{mv}}}^{{\mathbf{2}}}}$

Two bullets are fired at the same time with the same kinetic energy.

(a) If one bullet has twice the mass of the other, which has the greater speed?

(b) Which can do the most work?

(c) By what factor?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Net Work & Work-Energy Theorem concept. You can view video lessons to learn Net Work & Work-Energy Theorem. Or if you need more Net Work & Work-Energy Theorem practice, you can also practice Net Work & Work-Energy Theorem practice problems.