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Find out speed of particles when separat...

Find out speed of particles when separation between them is r.

Text Solution

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Energy conservation :
`0-(kq_1q_2)/(2r)=1/2mv_1^2+1/2mv_2^2-(kq_1q_2)/(r)`
Momentum conservation
(as E.F is action-reaction pair)
`mv_(1)=2mv_(2)impliesv_2=(v_1)/2`
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Knowledge Check

  • Two charged particles having charges 1 and -1 mu C and of mass 50 g each are held at rest while their separation is 2 m . Now the charges are released. Find the speed of the particles when their separation is 1 m .

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