- #1
Oxford365
- 25
- 0
Homework Statement
Spaceship mass=450000kg Initial Velocity= 300m/s y + 400m/s z
Asteroid mass = 2000kg Initial Velocity= -100m/s y - 50m/s z
Speed after 498m/s
Question: If the force between the objects is 5000N, how long will it take for spaceship to capture the asteroid? (Assume capture happens at constant force.)
Homework Equations
F=GMm/R^2
F=ma[/B]
The Attempt at a Solution
5000=(6.67x10^-11)(450000kg)(2000kg) / r^2
distance equals: .0035m
I know the accelerations are Spaceship: .0111 and Asteroid: 2.5
I'm lost after this. My guess is that the two objects come together with acceleration of 2.51 and must travel .0035m. .0035=1/2(2.51)t^2
t=.053s