# physics

posted by .

Ok. I'm writing that big test tomorrow, and I have no idea what should I do with this :
An alien is 5m from an astronaut. The astronaut notices the alien and they simultaneously begin to run from each other with v[alien]= 2m/s and v[astronaut] = 4m/s. Find their mutual distance 20seconds later.

## Similar Questions

1. ### Physics (been trying all day)

A 62.6 kg astronaut is on a space walk when the tether line to the shuttle breaks. The astronaut is able to throw a 11.0 kg oxygen tank in a direction away from the shuttle with a speed of 13.3 m/s, propelling the astronaut back to …
2. ### physics

A helicopter lifts a 70 kg astronaut 13 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/10. (a) How much work is done on the astronaut by the force from the helicopter?

An astronaut is performing a space walk outside the International Space Station. The total mass of astronaut with her space suit and all lher gear is 127 kg. A small leak develps in her pulsion system and 5.84 g of gas are ejected …

An astronaut is performing a space walk outside the International Space Station. The total mass of astronaut with her space suit and all lher gear is 127 kg. A small leak develps in her pulsion system and 5.84 g of gas are ejected …
5. ### Physics

An astronaut in outer space pushes himself away from his spaceship. About how far does the astronaut go before stopping?
6. ### physics

A 61.3 kg astronaut is on a space walk when the tether line to the shuttle breaks. The astronaut is able to throw a 11.0 kg oxygen tank in a direction away from the shuttle with a speed of 10.6 m/s, propelling the astronaut back to …
7. ### Physics

Help with Physics homework Please and thank you!?
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 64.3 kg astronaut is on a space walk when the tether line to the shuttle breaks. The astronaut is able to throw a 10.0 kg oxygen tank in a direction away from the shuttle with a speed of 11.9 m/s, propelling the astronaut back to …
10. ### science

An astronaut who weighed 170 pounds on Earth found that his weight on Jupiter was 400 pounds. He captured an alien that weighed 120 pounds on Jupiter. What is the alien's weight on Earth?

More Similar Questions

Post a New Question