Hello!
As I understand, the rocket backpack provides a constant force of During its work it throws away some mass, therefore the mass of the astronaut with his equipment changes. We don't know how it changes, but I suppose that this change is small (negligible).
The mass of an astronaut with his space suit is his weight on Earth divided by Earth's gravitational acceleration
His mass is
The mass...
Hello!
As I understand, the rocket backpack provides a constant force of During its work it throws away some mass, therefore the mass of the astronaut with his equipment changes. We don't know how it changes, but I suppose that this change is small (negligible).
The mass of an astronaut with his space suit is his weight on Earth divided by Earth's gravitational acceleration
His mass is
The mass remains the same in space, while weight may change even on Earth (during a free fall, for example).
By Newton's second law, the astronaut gets a constant acceleration of where
is a force. Therefore his velocity is
and his displacement is
(because the initial speed is zero).
Thus, after seconds the velocity will be
and the distance will be
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