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If two objects are at a very large distance from each other ad move towards each other due to mutual forces then what is the indiviual kinetic energy considering each to be of mass m and final distance r.
plz answer
accordin to conservation of linear momentam
mv1 + mv2 = final momentam = 0 = initial momentam
v1 = -v2
(KE)1 = (KE)2 (at any time)
now using conservation of energy
PE + KE = initial = 0 + 0 = 0
PE + KE = final = -Gm2/r + (KE)1 + (KE)2
(KE)1 = (KE)1 = KE so
KE = Gm2/2r ................1
kinetic energy of both will be Gm2/2r
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