gravitational field strength
For Q6.b. http://www.ocr.org.uk/Images/144798-question-paper-unit-g494-01-rise-and-fall-of-the-clockwork-universe.pdf I don't understand how you can tell that the field direction is always towards the centre of the sphere by looking at the graph (that is the correct answer).
Original post by Laurasaur
I think it's because every value on the graph would be negative (except zero), and negative, in terms of forces, means attractive?
That was my thinking, but I wasn't sure! Thank you
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