R2D2 is attached to a ship in space that is about to blow up (the ship is initially at rest). To save himself he pushes off the ship with a force of 15 N. R2 has a mass of 40 kg and the ship has a mass of 1000 kg. What is R2D2's acceleration? What is the ship's acceleration? Assuming no friction, how far away will R2D2 be from the ship after 10.0 seconds of floating away? If the blast radius is 19.0 m is R2 safe if the explosion occurs after 10.0 s?