Question

Why is the following situation impossible? An astronaut, together with the equipment he carries, has a mass of 150 kg . He is taking a space walk outside his spacecraft, which is drifting through space with a constant velocity. The astronaut accidentally pushes against the spacecraft and begins moving away at 20.0m/s , relative to the spacecraft, without a tether. To return, he takes equipment off his space suit and throws it in the direction away from the spacecraft. Because of his bulky space suit, he can throw equipment at a maximum speed of 5.00m/s relative to himself. After throwing enough equipment, he starts moving back to the spacecraft and is able to grab onto it and climb inside.

Answer 1

An astronaut total masse with equipment 150Kg

Astronaut moving velocity =20m/s.

Max speed at which he throws an equipment  = 5m/s

To show following situation impossible :

when two or more bodies are collided then the total momentum of the system are conserved if there is no external force acting on the system.

Pi initial momentum = mv

                                = 150x20=3000kg-m/s.

Pf = final momentum.

                                 = $-(m-x)v + xv_{2}$

where x is the mass of equipment, V2 is the speed of the equipment.

for conservation: Pi = Pf

                       -(150-x)20+5x = 3000

                                         x=240kg.

i,e Total mass = mass of astronaut + mass equipment,

                150= mass of astronaut + 240,

Mass of the astronaut = -60 kg

Therefor, The throwing of equipment not let the astronaut to come back to Spacecraft.

Does an astronaut have weight?

In space, space explorers and their spaceship still have mass and are still acted upon by Earth's gravity. In this sense, they still have weight, indeed in spite of the fact that Earth's gravitational drive is littler in orbit than it is on Earth's surface. Be that as it may, they don't feel their weight since nothing is pushing back on them.

To learn more about astronaut weight, visit:

brainly.com/question/11244838

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