Kinetic energy question

is this an a level q?

KE is proproational to the mass
mass of Th is 234, and mass of alpha particle is 4
so ratio is 234:4 = 238 of E
so 4 = 234/238 of E
so thereofre the answer is D?????


is that even correct lmao sorry if this got u the wrong answer ahah im onlyin year 12 and we haven't even done this in a level phsyics yet

lmk if D is acc the right answer

I'm a bit confused on the bit "so 4 = 234/238 of E" why is it 234/238? is the proportion of kinetic energy shared not 4/238 since the mass is 4?

yeah that's the PROPORPTION
so to write it as a fraction that's 4/238

eg if u have a ratio of x:y, x is x/(x+y)
make sense?

btw is my answer acc correct lol it may be wrong

yes I understand this, but you used 234/238 instead of 4/238 which is the thing that has me confused. But don't worry about it, I'm sure someone else can explain it since you have not covered this in class.