It is known that mass increases with velocity, and it becomes flatter ; but does its size increase also (does it become bigger)
2007-04-02 07:52:27 · 9 answers · asked by modah 1 in Science & Mathematics ➔ Physics
Mass increases with velocity? (uh, no, not really unless you're using archaic relativistic terminology--mass, which today usually means rest mass, is a Lorentz-invariant quantity).
Becomes flatter? (yes, length contracts along direction of motion, so it gets a flatter shape I guess)
Becomes bigger? (no, the length contraction makes it smaller, not bigger)
2007-04-02 07:58:21 · answer #1 · answered by Anonymous · 1⤊ 1⤋
According to the special theory of relativity, objects shrink in the direction of motion. The relativistic increase in mass is not an increase in size, but rather is an increase in the object's inertia, i.e., the force required to effect a given acceleration ( M = F / A ). However, please note that questions like this one are usually posed too vaguely to give a good answer. It would be clearer if, when mentioning velocity, you would specify the reference frame, i.e., velocity with respect to what? That is because, according to the theory, different observers will measure different values for length, mass, and time, depending on the observer's state of motion..
2007-04-02 08:05:37 · answer #2 · answered by Renaissance Man 5 · 2⤊ 1⤋
Mass weight increases with velocity, however mass stays the same. Think in terms of gravitational measure the higher the G load the more load is applied to the mass weight, thus the mass weight increases but not the mass. You weight more going up in a elevator and less coming down.
2007-04-02 08:00:49 · answer #3 · answered by Tom H 4 · 0⤊ 3⤋
No, at relativistic speeds it just becomes foreshortened and more massive. The only other change is the relative rate of the passage of time.
2007-04-02 07:56:34 · answer #4 · answered by indiana_jones_andthelastcrusade 3 · 0⤊ 0⤋
No! It is force that increases with velocity, not mass. (F=mv) Also, "flatter" has nothing to do with the equation. When you refer to something getting flatter, you are talking about density, not mass.
2007-04-02 08:01:22 · answer #5 · answered by Kathy C 2 · 0⤊ 2⤋
according to Einstein theory the length of objects decrease with the increase of its velocity. the amount of its decrease is measurable.
2007-04-02 07:58:56 · answer #6 · answered by Anonymous · 1⤊ 1⤋
no... the velocity may depend on the oblects matter but it does not change the size.
2007-04-02 07:56:40 · answer #7 · answered by aubby 1 · 0⤊ 1⤋
A frisbee traveling toward me, was getting bigger and bigger.
I wondered why,
and then it hit me.
2007-04-02 08:00:52 · answer #8 · answered by chinamigarden 6 · 2⤊ 1⤋
If you mean at relativistic speeds, the answer is no.
2007-04-02 07:56:02 · answer #9 · answered by Gene 7 · 0⤊ 0⤋