Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Bidyut sinha
please see the attached..Two things I need to mention.. 1.in the last part of Py, that will be +3m.u sin60°...it is typing mistake of book. 2.for final momentum,we have assumed that vx and vy are final momentum along x and y.so total mass(m+2m+3m=6m)×vx and 6m Vy...