Recent content by omartech

great! Thanks a lot .. i finally see how to solve these equations.. i was really confused. it was just a long time i hadn't done this.. but yes i'll look into the question clearly to see whether we should add the 4.75 or multiply.. in either case.. we'll get the same kind of equation.. thanks...

yup i got the math wrong initially.. i end up getting two equations.. and when i put the value of v1 in the quadratic equation to reduce it to one variable i get 27.5v^2 + 8*v*v2 - 14/5v2^2 = 0.. I'm sure about this till here.. now I'm confused as to how to solve v2 in terms of v...

Oh ok i didn't see that coming, but I'm still getting stuck.. i guess 3 years after you leave math u become real rusty in solving stuff .. so finally, after i isolate v2 i get v1 = v+v2.. i put this in the main equation to get: 47.5v^2 = 5(v+v2)^2 - 2v2^2... solving this makes me reach...

Homework Statement a projectile of mass M explodes into three fragments while in flight at velocity v. one fragment of mass M/2 travels in the original direction, one of mass 3M/10 comes to rest and the third fragment of mass M/5 travels in the opposite direction. The energy released in the...