Pratham Ashish
Last Activity: 15 Years ago
hi vaibhav,
dis question is quite straight forward
as velocity at d highest point is v cosx
just apply momentum conservation
m(v cosx) = m/2 (-ucosx ) + m/2 v1, [ as it is divided into parts of equal mass n one part retraces to d cannon itself so its velocity will be vcosx but wid a negative sign]
we hav to find v1
here simply u get v1= 3v cosx