# 1 mark question

i dont understand y momentum is even mentioned, is this just to throw u off because answer is B?
u only need to rearrange kinetic energy equation
(edited 1 year ago)

i dont understand y momentum is even mentioned, is this just to throw u off because answer is B?
u only need to rearrange kinetic energy equation

Just something to make the question a bit more general, rather than simply saying rearrange the KE equation.
Original post by mqb2766
Just something to make the question a bit more general, rather than simply saying rearrange the KE equation.

it just makes me waste so much time tryna figure out y its not one of the last 2
it just makes me waste so much time tryna figure out y its not one of the last 2

You should know that
E = p*v/2
which pretty much gives it that its not c) and d).
Original post by mqb2766
You should know that
E = p*v/2
which pretty much gives it that its not c) and d).

yh i just hve to rearrange it for v, my brain cnt when looking at c and realise its wrong