Physics has me lost :c Any help would be appreciated

[Anonymous No.1990682]

The momentum and the kinetic energy of particle A is seven times and five times the momentum and the kinetic energy of particle B, respectively. What is the ratio of the mass of particle A to that of particle B?

[Anonymous No.1990694]

bump

[Anonymous No.1990706]

Are they the same particles? If so they always have the same (rest) mass, regardless of their momentum.

[Anonymous No.1990730]

1 dick to every 2 buttcheeks

dickbutt is your answer

[Anonymous No.1990745]

>>1990706
Nevermind that, I didn't really get the problem <div class="math"> E_{a}=\sqrt{(m_{a} c^{2})^{2} + (7p c)^{2}} = 5 E_{b} = 5\sqrt{(m_{b} c^{2})^{2} + (p c)^{2}}</div> This should help you.

[Anonymous No.1990768]

9.8*m1 = m2

you're welcome

[Anonymous No.1990789]

>>1990768
me again
start with
<span class="math">
7(m_1)(v_1) = (m_2)(v_2)
[/spoiler]
and
<span class="math">
(2.5)(m_1)(v_1)^2 = (1/2)(m_2)(v_2)^2
[/spoiler]

solve the second equation for <span class="math">m_1[/spoiler], plug it back into the first equation, then simplify. it comes out to <span class="math">9.8*(m_1) = (m_2) [/spoiler]

[Anonymous No.1990834]

>>1990682
> is seven times and five times the momentum
the fuck am i reading

[Anonymous No.1990867]

>>1990834
momentum of particle 1 is 7x the momentum of particle 2, and ke of particle 1 is 5x the ke of particle 2.

dumbass