Sebuah partikel memiliki massa diam mo, kemudian bergerak dan memiliki energi kinetik sebesar K. Jika cepat rambat cahaya = c, momentum partikel adalah ....
MRCRACKER
Et = Ek + Eo Ek = Et - Eo Ek = m*c^2 - mo*c^2 Ek = mo*¥*c^2 - mo*c^2 ........(1)
p = m*c p = mo*¥*c p/(mo*c) = ¥ ..........(2)
subtitusi per (2) ke pers (1)
Ek = mo*p/(mo*c) *c^2 - mo*c^2 Ek = p*c - mo*c^2 p*c = Ek + mo*c^2 p = Ek/c + mo*c p = K/c + mo*c
Ek = Et - Eo
Ek = m*c^2 - mo*c^2
Ek = mo*¥*c^2 - mo*c^2 ........(1)
p = m*c
p = mo*¥*c
p/(mo*c) = ¥ ..........(2)
subtitusi per (2) ke pers (1)
Ek = mo*p/(mo*c) *c^2 - mo*c^2
Ek = p*c - mo*c^2
p*c = Ek + mo*c^2
p = Ek/c + mo*c
p = K/c + mo*c