39woh mujhe bi patha hain. tu kar ke dikha mujhe nahin aa raha hain.
Three particles A,B,C of mass `m` each are joined to each other by massless rigid rods to form a equilaterall triangle of side `a`.Another particle of mass `m` hits `B` with a velocity v0 directed along BC as shown.
The colliding particle stops immediately after the imapct.
1] Calculate the time required by triangle ABC to complete half revolution in its sub sequent motion.
2]what is the net displacement of point B during this interval?
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12 Answers
1this can be solved by the following steps -
1>locate the centre of mass
2>angular momentum of particle colliding
3>equate it to ang. momentum of the system (Iw)
4>conserve momentum = mv=3mv'
5>then the answer can be obtained
39dimensions yaar, at first i also arrived at tyhe same answer. its wrong.!!!!!!!!!!!!!!!!
1sahi hai
time galat aa raha hai to displacement to galat hi aayega
i have not read ur previous post !!!!!!!!!!!!
1for the second one
there will be two displacements of B
1> in horizontal direction=just vt
2>in the direction of the diagonal = √(a2+(2a√3/2) )
now their vector sum will give displacement