Timeline for Amount of work: clarifications

10 events

when toggle format	what		by	license	comment
Dec 5, 2020 at 15:29	comment	added	pglpm		@BrianDrake Indeed! Displacements are observer-dependent (and also changes in kinetic energy, and many other quantities). And this simple fact can be very important for future studies in the student's path. In general relativity, for example, free-falling reference frames (in which the gravitational force never does any work) are the "natural" ones (geodesic motion). Thank you for pointing out the confusing part, I'll edit to make it clearer.
Dec 5, 2020 at 15:22	history	edited	pglpm	CC BY-SA 4.0	add explanation
Dec 5, 2020 at 15:16	history	edited	pglpm	CC BY-SA 4.0	add explanation
Dec 5, 2020 at 12:56	comment	added	Brian Drake		After reading your recent comment on another post, I took a closer look at this post and was confused for a while, until I realised that $h$ is also observer-dependent. (Imagine the object has constant velocity and the reference frame has the same velocity. Then everything is zero, including $h$.)
Dec 3, 2020 at 6:04	vote	accept	KRATOS0990
Dec 1, 2020 at 15:29	history	edited	pglpm	CC BY-SA 4.0	clarified
Dec 1, 2020 at 14:34	vote	accept	KRATOS0990
Dec 3, 2020 at 6:04
Dec 1, 2020 at 14:34	vote	accept	KRATOS0990
Dec 1, 2020 at 14:34
Dec 1, 2020 at 14:14	history	edited	pglpm	CC BY-SA 4.0	typo
Dec 1, 2020 at 14:04	history	answered	pglpm	CC BY-SA 4.0