A spaceship (3500kg) and an asteroid (6200kg) both initially at rest are attached by a rope. The spaceship then pulls on the asteroid with a 490 N force. If they are initially 450 meters away, how long does it take the asteroid to hit the spaceship? First off I’m confused because if the spaceship was pulling the asteroid why would the asteroid ever catch up to it unless the spaceship stopped or slowed down??? The problem is unclear about this. The answer is 67 seconds. I tried multiple different routes to solve this problem using… F=ma Delta_x = (v_o)*t + ½*a*(t^2) For the asteroid to catch the spaceship it must be accelerating faster but how can that be if it weighs more???