Exploding

[bhavanam]

[#751] Exploding

A mass breaks suddenly into two parts, masses MM and mm, with speeds VV and vv respectively and carrying a total kinetic energy KK. If \frac{M}{m} = R = 4.2
m
M
​ =R=4.2, what fractions of KK does each of the masses carry? (Think about significant figures.)

a) MM carries _____ KK.

b) mm carries _____ KK.

[fiction-factory]

For starters which principle are you going to use here? Then think about the equation(s) you have covered on your course

I'm not sure you have set some of this out properly. Does your book/homework sheet really say
If \frac{M}{m} = R = 4.2
m
M
​ =R=4.2,

[fiction-factory]

Have you read the question back on here and thought- "ah, that looks a mess, I'll reformat it to help readers"

Like this:

A mass breaks suddenly into two parts, masses M and m, with speeds V and v respectively and carrying a total kinetic energy K.
If M / m = R = 4.2, what fractions of K does each of the masses carry? (Think about significant figures.)
a) M carries _____ K. b) m carries _____ K.

Again you must have an idea what principle and equation to use. Tell us what you think. It seems pretty straightforward to me if you spend a few minutes on it

[douglas9401]

Reformat all you like, it won't help this reader.