Question

1. On earth, two parts of a space probe weigh 11000 N and 5700 N. These parts are separated by a center-to-center distance of 13 m and may be treated as uniform spherical objects. Find the magnitude of the gravitational force that each part exerts on the other out in space, far from any other objects.

________________________ N

2. At a time when mining asteroids has become feasible, astronauts have connected a line between their 3440-kg space tug and a 6250-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?

_____________________s

Answer 1