Is Mass Relative?

Question

Mass not relative to velocity? Is only relative to time?

M n=M( 1-T^2/To ^2)^-1/2 where t=T is relative inertial time and the is a constant time relative to speed of light.

Answer 1

according to the theory of relativity, every measurable quantity is relative EXCEPT the speed of light.

these quantities include mass, time, length, and speed.

the measurement of these items is relative to observer's frame of reference ( speed or gravitional field ).

consider that EVERY observer measures the speed of light to be the same regardless of their own speed. what that means is that each observer can only specify their speed in relation to another material object ( never against space or light ). speed loses its meaning here because your speed is dependent on what object you use a fixed point ! ( on earth your speed may be zero , or 15,000 mph depending whether you compare to the ground or the galactic center ! ). your own speed is an arbitrary value.

if you apply this relativity principle to mass, you the get the result. ( objects get more massive at higher speeds depending on whose observing ! ),

this happens with all the quantities except for the speed of light, which is always constant.

this is the meaning of relativity.

thanks gore.

:)

Answer 2

Yes, mass is relative to velocity. That is one of the reasons it is impossible to travel as fast as light. As velocity increases mass increases and the energy needed to accelerate a mass increases exponentially. Thus, once you near the speed of light the energy needed for further acceleration is greater than the total energy in the entire universe.

Answer 3

yes mass is relative to velocity.

according to mass velocity eq.
Mv=Mo/[1-(v^2/c^2)]^1/2
where Mv - mass of body at velocity v
Mo - rest mass of body
thus mass increases with increase in velocity.
also by E=MC^2
mass is also can converted in to energy and vice verse.

Answer 4

Mass is the amount of matter you are made up of so no it is not relative......Weight is relative to the gravity involved. Fyi you have weight in space, on moon and in orbit but when in orbit you are in free fall state so seem weightless

Answer 5

Mass is relative to Connecticut and sister to New Hampshire and Vermont.

Answer 6

yes mass is relative according to Einstein theory of relativity though for normal calculation we consider mass as absolute.

Answer 7

Yes. And you should see the mass of my relatives!

Keep smiling!

Answer 8

According to most physicists, actual mass doesn't increase. It's more of an increase in the inertia frame of reference of the object that's moving close to the speed of light.

Check this out:
http://en.wikipedia.org/wiki/Mass_in_special_relativity

Answer 9

no mass is mass. However, weight is dependent on the force of gravity. Thus weightlessness in space despite no change in mass.

Answer 10

M'*** is getting to be way too big,,, Which in retrospect makes it relative. I call it my twin sister!