9.Two cars have a rear-end collision. A 1200 kg Honda moving at 20 m/s strikes a 1000 kg Ford moving at 15 m/s. Their bumpers become locked and they continue to move as one mass. What is their final velocity?

tube or goog will be great resources to find the answer to the question that you're asking

are their multiple choices ?

explanation:

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg

this would be about 43%