Help I like someone who is dating someone else

Don't stress yourself out because they're dating someone else, also do you really need them???

Explanation:

Same thing happened to me my freshman year

tell him/her how you feel

if he/she feels the same way continue to talk

if he/she doesn't ask him/her to still be friends  

Explanation:

answer; the above statement is true ( correct );

ek = (m.v2) / 2

v - velocity of system after the collision

m = m1 + m2

ek = (m1 + m2) v2/2

ek = (200 + 250) 2,32/2 = 450*5,29/2 = 1190,25 j

by: nicholas dooley