Not understanding a formula for this problem(adsbygoogle = window.adsbygoogle || []).push({});

Which has more kinectic energy a .00020-kg bullet traveling at 400m/s or a 6.4 10 to 7th power -kg ocean liner traveling at 10m/s (20 knots)?

I know that w=fd=mad=ma(1/2)at2) =1/2m(at)2 +1/2mv2 Is this the right formula?

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Kinetic energy

**Physics Forums | Science Articles, Homework Help, Discussion**