Thursday

August 21, 2014

August 21, 2014

Posted by **Raf** on Tuesday, October 18, 2011 at 2:52pm.

a) What mathematical expression characterises the instant rate of change of the force F in respect to the distance (r) separating the two masses moving towards each other?

I got dF/dt = 2GmM/r^3 dr/dt

b) What's the rate of change?

No idea what to do here, they don't give me any numbers.

**Related Questions**

Math - The universal law of gravitation determines the amount of force exerted ...

calculus - newtons law of gravitation says that the magnitude F of the force ...

physics - 1. Two point charges are separated by 6 cm. The attractive force ...

Calc - Newton's Law of Gravitation says that the magnitude F of the force ...

Algebra 1 Scientific Notation - Isaac newtons theory of universal gravitation ...

physics - Proponents of astrology claim that the positions of the planets at the...

6th grade science (physics) - explain and describe Law of Universal Gravitation ...

Physics B - Objects with masses of 105 kg and 528 kg are separated by 0.482 m. A...

Calculus - Okay so I have the following question and I am totally stuck: Newton'...

Physics - Given: The universal gravitational con- stant is 6.672 × 10−11 N...