Net Work & Work-Energy Theorem Video Lessons

Concept

Problem: 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?

FREE Expert Solution

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

Kinetic energy:

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

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Problem Details

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?