You're 25% of the way through this course! Keep going at this rate, and you'll be done before you know it.Way to go! If you watch at least 30 minutes of lessons each day you'll master your goals before you know it. Go to Next Lesson Take Quiz Congratulations on earning a badge for watching 10 videos but you've only scratched the surface. Keep it up! Go to Next Lesson Take Quiz You've just earned a badge for watching 50 different lessons. Keep it up, you're making great progress! Go to Next Lesson Take Quiz You have earned a badge for watching 20 minutes of lessons. You have earned a badge for watching 50 minutes of lessons. You have earned a badge for watching 100 minutes of lessons. You have earned a badge for watching 250 minutes of lessons. You have earned a badge for watching 500 minutes of lessons.
Why is G negative in Newton's formula of universal gravitation? | Yahoo Answers
It's not the G that is negative, it's the entire right side of the equation. The negative just means that it is an attractive, rather than repulsive force. If it wasn't negative, it would imply that the gravitational potential energy DECREASED as you moved farther away from it, which doesn't make sense. The negative resolves this by making things that are farther away have more potential energy than things that are closer.