I am doing a lab and was hoping to get help on this one question.

Analysis at the First Impact (Light car hits Heavy Truck):

Assuming a completely inelastic collision, where the car locks into the back of the truck, determine the final velocity of the car-truck system (light hits heavy) using the vf formula above. .

What is the Mass (m1) of a Ford Focus in Kilograms ? _298__ kg

Speed of the Car before collision, v1 = _22_ m/s

What is the Mass (m2) of a full Tractor trailer in Kilograms ? _36,287____ kg

Speed of the truck before collision , v2 = _0_ m/s

Find the final speed of the car-truck group (use formula):