Gravi
Two particles A and B of masses 1 kg and 2 kg respectively are kept 1 m apart and are released to move under mutual attraction. Find the speed of A when that of B is 3.6 cm/hour. What is the separation between the particles at this instant ?
im able to do the first part but i dont understand what is going on in second part
11 Replies
@Gyro Gearloose
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.Energy conservation lagegi I suppose
hn par i dont get ki bhai kaise le rhe
approach smj nhi ara
Well, for the first one conserve momentum, for the second one use energy conservation. So,
$\frac{-GMm}{x{initial}}=\frac{mv^{2}}{2}+\frac{Mu^{2}}{2}-\frac{GMm}{x{final}}$, where v and u are velocities of mass m and M
SirLancelotDuLac
And x_initial and x_final are seprations initially and finally.
wont both the masses have a gravi potential?
For 2 bodies we only write the potential once.
oh ok
okk got it
+solved @SirLancelotDuLac
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