Here is the question:(adsbygoogle = window.adsbygoogle || []).push({});

Astronauts have connected a line between their 3280 kg space tug and a 6100 kg asteroid.

Using their ship's engine, they pull on the asteroid with a force of 490 N. Initially the tug and the asteroid are at rest, 490 m apart.

How much time does it take for the ship and the asteroid to meet?

-490N 490N

Tug(3280kg)-------><------Asteroid(6100kg)

490m

So Acceleration = Force/Mass

Acceleration for the asteroid is 490/6100 = .0803 m/s2

Acceleration for the tug is -490/3280 = -.149 m/s2

How do I calculate the time when given the initial speed, the distance between, and the acceleration of two objects?

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Help with Newton's Third Law

**Physics Forums | Science Articles, Homework Help, Discussion**