106
according to me fig. will be like this.
and this when collision
solve karne ke liye to mujhe ek din chahiye.
Answer thoda de doge to hint mil sakta hai.....
3 identical discs A,B,C rest on a smooth horz surface.Disc A is set into motion with speed u after which it experiences elastic collision simultaneously with B and C.Distace b/w centres of B and C prior to collision is n times the diameter of disc.Find velocity of A after collision.For what value of n will the disc stop,move and recoil
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8 Answers
3cud u post sum figure itz not clear """""elastic collision simultaneously with B and C""""""""
how can dat be!!!!!!
24no figure dear...........but i visualize it like this....biased view though
106
3and eureka for it to recoil........................do same as before but here
2Jcosθ=2mu...............
J=2mucosθ..............
and for it to move ull get a range of n values!!!!!!!!!!!!!!!!!apart from the value for which it stops but note it cant go beyond 2!!!!!!
then they wont even collide[3][9]
or u can mathematically say that the sin inv x is defined for x frm -1 to 1 and if n>2 then
u can see that the value inside sine inv in the expression in the last line left side of my scanned page will exceed 1 so its not defined!!!!!!!!!![2]
and evidently not below zero[3]!!!!!!!!!!!!!!!!!!!!!
24gud job iitimcomin.[1][1][1]...............
but i posted this question specially for philip who i think didnt notice it[2][2][2]............
continue the gud work.....