Qualification > Sciences
P.H.Y.S.I.C.S P2 D.O.U.B.T.S CIE
Meticulous:
Have you calculated the momentum before and after the collision? What were your answers?
halosh92:
--- Quote from: ~ A.F ~ on June 03, 2010, 01:26:49 pm ---Have you calculated the momentum before and after the collision? What were your answers?
--- End quote ---
nop i calculated the change in momentum, its 0.14
Meticulous:
Well then..
its not conserved
right?
halosh92:
--- Quote from: ~ A.F ~ on June 03, 2010, 01:34:02 pm ---Well then..
its not conserved
right?
--- End quote ---
actually the ms says :
plate (and Earth) gain momentum
equal and opposite to the change for the ball
so momentum is conserved
and sorry that was change in energy not momentum ;D
we didnt have to calculate momentum
Meticulous:
LOL no prblm
The thing is..mometum is like energy...always conserved.
The q here was tricky, to the ball, it LOST momentum..but still the lost momentum went to earth
so basically its conserved
Right?
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version