two equal masses on an effectively frictionless horizontal airtrack are held bet

Question

two equal masses on an effectively frictionless horizontal airtrack are held between rigid supports by three identical springs.The displacement from the equilibrium along the line of the springsare described by the coordinates xa and xb.If either of the masses is clamped,the period (=2?/? )for one complete vibration of the other is 3s.

(a)write an equation for the subsequent displacement ofeach mass as a function of time.

(b)what length of time(in seconds) characterizes theperiodic transfer of the motion from B to A and back again? Afterone cycle, is the situation at t=0 exactly reproduced?explain.

Explanation / Answer

period (=2?/? ), please tell what this question mark means

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