what is the weight of a 48 kg astronaut in outer space traveling with constant velocity?

The weight will always be 0

To determine the weight of the astronaut in outer space, we need to understand the concept of weight and how it differs from mass.

Weight is the force exerted on an object due to gravity. On Earth, the weight of an object is directly proportional to its mass. However, in outer space, where there is very little or no gravity, the concept of weight as we know it on Earth does not exist.

So, in this case, if the astronaut is in outer space where there is little or no gravity, their weight would be essentially zero. They would experience the sensation of being weightless, similar to what is experienced by astronauts on the International Space Station (ISS).

It's worth noting that even though the weight is zero in space, the mass of the astronaut remains the same. Mass is a measure of the amount of matter in an object and does not change regardless of the gravitational force acting on it.

In summary, the weight of a 48 kg astronaut in outer space traveling with constant velocity would be zero.