Reply To: Chemistry/Biology/Physics/Biochemistry/Math

feivel-

Actually, if gravity would cease, you would fly off the earth. There would be absolutely nothing holding you to the ground. And friction would also cease, because the equation for friction:

F(f)=uF(n)

where “u” (actually, really the Greek letter mew, the frictional coefficient), and N(n) is the “normal force”, which is

F(n)=mg

where “m” is the mass and “g” is the gravitational constant. So if “g” is zero, then F(n)=0, and consequently, F(f)=0 (there would be absoluteley no friction).

So…gravity is the only thing holding us here 🙂