1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

General question about potential energy

  1. Mar 26, 2013 #1
    I have a general question. Is an increase in potential energy always associated with the decrease of the speed whatever the situation is. Vice verca, is a decrease in potential energy associated with the increase in the speed of the object assuming that only conservative forces are present? Thanks for anyone who contributes with ideas
  2. jcsd
  3. Mar 26, 2013 #2


    User Avatar
    2017 Award

    Staff: Mentor

    Depends on your view of the system.

    Speed depends on the reference frame - a deceleration in one system can be an acceleration in another.

    Rockets can increase their potential energy and their velocity (relative to the ground) at the same time, but they need energy for that.

    If you have an object without substructure in a closed system in a time-independent potential, an increase in potential energy always gives a reduced velocity.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - General question potential Date
B General Physics Question -- Max height of a projectile Jun 25, 2017
I General questions with currents May 19, 2017