Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
Home  >>  JEEMAIN and AIPMT  >>  Physics  >>  Class11  >>  Gravitation
0 votes

A satellite of mass m moves along an elliptical path around the earth. The areal velocity of satellite is proportional to

\[(a)\;m \quad (b)\;m^{0} \quad (c)\;m^{-1} \quad (d)\;m^{\frac{1}{2}}\]

Can you answer this question?

1 Answer

0 votes
The areal velocity $ \large\frac{dA}{dt}$ =constant
$\large\frac{dA}{dt}=\frac{L}{2 m}$
$L=mvr \sin \theta$ (angular momentum)
$\large\frac{dA}{dt}=\frac{mvr \sin \theta}{2m}$
$\qquad= v r \sin \theta$
$\therefore \large\frac{dA}{dt} $$\; \alpha\; m^0$
Hence b is the correct answer.


answered Aug 21, 2013 by meena.p
edited Feb 17, 2014 by meena.p

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App