Tuesday
March 31, 2015

Homework Help: Calc

Posted by Josh on Tuesday, November 3, 2009 at 9:18pm.

Newton's Law of Gravitation says that the magnitude F of the force exerted by a body of mass m on a body of mass M is the following.
F=(GmM)/r^2
Here G is the gravitational constant and r is the distance between the bodies.
(a) Find dF/dr

(b) Suppose it is known that Earth attracts an object with a force that decreases at the rate of 2 N/km when r = 30,000 km. How fast does this force change when r = 15,000 km?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

calculus - newtons law of gravitation says that the magnitude F of the force ...
Calculus - Okay so I have the following question and I am totally stuck: Newton'...
science - Newton’s law of universal gravitation is rep- resented by F=GMm r2 ...
physics - Proponents of astrology claim that the positions of the planets at the...
Science - A hirozontal force F works on a body of mass m1 and accelerates it by ...
Physics, 4 short questions - VERY IMPORTANT FOR AN ESSAY ASSIGNMENT. PLEASE HELP...
physics question - I have a question about a problem regarding Newton's third ...
physics - Newton was holding an apple of mass 120 g and thinking about the ...
Math2 - The universal law of gravitation determines the amount of force exerted ...
Physics - Q.1:When a force is applied to a body,several effects are possible....

Members