February 24, 2017

Homework Help: calculus

Posted by cassie on Thursday, October 11, 2007 at 11:55pm.

newtons law of gravitation says that the magnitude F of the force exerted by a body of mass m on a bod of mass M is F=GmM/r^2 where G is the gravitational constant and r is the distance between the bodies.
a)find dF/dr and explain its meaning. What does te minue sign mean?
b)suppose it is known that the earth attracts an object with a force that decreases at a rate 2N/km when r=20,000km?

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions