Increase in the mass of body as predicted by theory of relativity is real or apparent?

Answer 1

It is quite real; since the kinetic energy increases, the mass also increases. In fact, for people who work with particle accelerators, this is something they have to take into account in their daily work. But please note that:

1. This is relative to the observer. Someone who travels at the same velocity of the moving object will not measure an increase in mass; for him, the object is not moving.

2. In "normal" everyday life, at slow speeds, any changes in mass, length, times, are too insignificant to worry about. Even at 1/10 of the speed of light, the change is less than one percent.

It is quite real; since the kinetic energy increases, the mass also increases. In fact, for people who work with particle accelerators, this is something they have to take into account in their daily work. But please note that:

1. This is relative to the observer. Someone who travels at the same velocity of the moving object will not measure an increase in mass; for him, the object is not moving.

2. In "normal" everyday life, at slow speeds, any changes in mass, length, times, are too insignificant to worry about. Even at 1/10 of the speed of light, the change is less than one percent.

It is quite real; since the kinetic energy increases, the mass also increases. In fact, for people who work with particle accelerators, this is something they have to take into account in their daily work. But please note that:

1. This is relative to the observer. Someone who travels at the same velocity of the moving object will not measure an increase in mass; for him, the object is not moving.

2. In "normal" everyday life, at slow speeds, any changes in mass, length, times, are too insignificant to worry about. Even at 1/10 of the speed of light, the change is less than one percent.

It is quite real; since the kinetic energy increases, the mass also increases. In fact, for people who work with particle accelerators, this is something they have to take into account in their daily work. But please note that:

1. This is relative to the observer. Someone who travels at the same velocity of the moving object will not measure an increase in mass; for him, the object is not moving.

2. In "normal" everyday life, at slow speeds, any changes in mass, length, times, are too insignificant to worry about. Even at 1/10 of the speed of light, the change is less than one percent.

Answer 2

It is quite real; since the kinetic energy increases, the mass also increases. In fact, for people who work with particle accelerators, this is something they have to take into account in their daily work. But please note that:

1. This is relative to the observer. Someone who travels at the same velocity of the moving object will not measure an increase in mass; for him, the object is not moving.

2. In "normal" everyday life, at slow speeds, any changes in mass, length, times, are too insignificant to worry about. Even at 1/10 of the speed of light, the change is less than one percent.