Answer= 8m/s
Because total Momentum before= total momentum after
Momentum before (p=mu)
p=(4)(12)= 48
p=2(0)=0
So total momentum before=48
Momentum after (p=mu)
Masses combined —2+4=6kg
p=6u
Mb=Ma
48=6u
u=8m/s
Either A or D. If I were answering I'd go with my git answer and say A
300 divide 1.5=200 let me know if this was helpful
Answer:
C?
Explanation:
My best guess would be C as it's the only answer that gives a reason behind the statement.