Since the left-hand side of this equation is the force given as 80 N, then we can solve for the combination mv2by multiplying both sides by r= 2.0 ×107m. Thus, mv2= (2.0 ×107m) (80 N) = 1.6 ×109J. Therefore, ()298111.610 J8.010 J .22Kmv==×=×(b) Since the gravitational force is inversely proportional to the square of the radius, then
This is the end of the preview. Sign up
access the rest of the document.