# Math

posted by .

A 100 kg astronaut is standing on the outside surface of a 4.50 x 10^4 kg spacecraft. The astronaut jumps away from the spacecraft at 8.00 m/s. What happens to the spacecraft?

• Math -

multiply (simplified fraction)

-8/3*(7/1)

• Math -

• Math -

I believe this is a case of conservation of momentums, namely zero since both objects were stationary to start with.
M1V1 + M2V2 = 0
100*8 + 45000*V2 = 0
V2
= -100*8/45000
= -0.0178 m/s.
Answer: The spaceship moves at 0.0178 in the opposite direction as the astronaut.

• Math -

Erratum:
Answer: The spaceship moves at 0.0178 m/s in the opposite direction as the astronaut.

## Similar Questions

1. ### physical science

A 200.0 kg astronaut and equipment move with a velocity of 2.00 m/s toward an orbiting spacecraft. How long will the astronaut need to fire a 100.0 N rocket backpack to stop the motion relative to the spacecraft?
2. ### math

Help Please. A 100 kg astronaut is standing on the outside surface of a 4.50 x 10^4 kgspacecraft. The astronaut jumps away from the spacecraft at 8.00 m/s. What happens to the spacecraft?
3. ### physics

A 200.0 kg astronaut and equipment move with a velocity of 2.00 m/s toward an orbiting spacecraft. The astronaut will fire a 100.0 N rocket backpack to stop his motion relative to the spacecraft. (a) What acceleration is attained by …
4. ### science

What will eventually occur if in deep space an astronaut's wrench is outside the spacecraft moving with the same velocity as the spacecraft?
5. ### physical science

a 300 kg astronaut and equipment move with a velocity of 2.oom/s toward an orbiting spacecraft. How long must the astronaut fire a 100N rocket backpack to stop the motion relative to the spacecraft?
6. ### Aths

Suppose you are an astronaut spacewalking outside your spacecraft to repair a broken part. In fixing the part, you have drifted several meters from your spacecraft. You are now at rest and are still holding a bag filled with tools. …
7. ### Physics

An astronaut of mass m in a spacecraft experiences a gravitational force F=mg when stationary on the launchpad. What is the gravitational force on the astronaut when the spacecraft is launched vertically upwards with an acceleration …
8. ### physics

An astronaut comes loose while outside the spacecraft and finds himself floating away from the spacecraft with only a big bag of tools. In desperation, the astronaut throws his bag of tools in the direction of his motion (away from …
9. ### Physics

A 70.0-kg astronaut pushes to the left on a spacecraft with a force   in "gravity-free" space. The spacecraft has a total mass of 1.0 × 104 kg. During the push, the astronaut accelerates to the right with an acceleration of 0.36 …
10. ### Physics

Question: A 62 kg astronaut floats outside a 3200 kg spacecraft. She's initially stationary with respect to the spacecraft. Then she pushes against the spacecraft and moves away at .50m/s to the left. I got an answer of .0096kg from …

More Similar Questions