Continue to follow the motion of the satellite
"An astronaut" is the correct form, not "a astronaut." "an" is used instead of "a" whenever the word it modifies begins with a vowel.
The force of gravity on Earth for this astronaut is 50 x 9.8 = 490 Newton. Divide this by 5.6 squared, and you get 15.6 Newton.Note that the astronaut will not feel this force, because he is in free fall; any space capsule he is in will accelerate towards Earth with the same speed as him, and he will feel weightless.
Singular = astronaut, singular possessive = astronaut's. Plural = astronauts, plural possessive = astronauts'.
Sputnik 2, launched November 3, 1957. Sputnik 1 was the first man-made Earth satellite, and Sputnik 2 was the second. Sputnik 2 carried a dog, Laika, as the first astronaut. The dog died a few hours after launch. The USA did not launch its first satellite, Explorer 1, until about 3 months later, on January 31, 1958.
The astronaut's mass is the same on the moon but the gravitational force applied on the astronaut is weaker thus the astronaut appears to weigh less.
it will continue to follow the motion of the satellite
If you have a lot of time, and a huge amount of expendable cash, you can place a reasonably massive satellite in orbit under the spoon. Over time the satellite's gravity will pull the spoon's orbit lower and lower. Eventually the spoon's orbit will decay and it will drop toward earth. Just wait. It will end up on Earth eventually. The satellite is already in orbit and will eventually fall into the atmosphere. Anything that falls off the satellite is going to eventually go 'down' to Earth.
Dropped biscuits are slightly more moist than biscuits that are rolled out and cut, and they are just dropped from the spoon on to the baking sheet.
The Soviet astronaut Yuri Gagarin was the first human being to orbit the Earth in an artificial satellite on April 12, 1961.
The force applied would be zero as a freely floating astronaut feels weightlessness as the gravitational force acting on him is zero.
It will stay with the satellite for a while, in a similar orbit. If the satellite is in low orbit, gradually the object will get away from the satellite, due to "tidal forces" from Earth.