The Chinese proposal of launching a "retrograde" spacecraft to counter the danger of collision with Apophis, indirectly gives a conceptual jolt to the teaching circular motion at the "O" level physics. While teaching this basic topic, we "never consider" two bodies moving in "opposite" direction...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.