Given an ideal rocket in a friction-free, gravity-free environment:(adsbygoogle = window.adsbygoogle || []).push({});

A precise amount of energyEis applied to accelerating a rocket. An external observer at the origin (rocket velocity=0) watches the rocket accelerate to a final velocityV. As expected, the origin observer finds thatVprecisely matches the value required forEto equal the kinetic energy (KE) of the rocket.

An observer aboard the rocket only has an accelerometer and a proper clock. If the rocket observer integrates his accelerometer readings using the proper clock during the acceleration event to find his final velocityV', willV = V'?

Thanks!

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

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!

# Do origin and onboard rocket observers agree on velocity?

Loading...

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