pls help me

During a class demo of momentum, Briscoe has 2 students sit on a single blue cart (with a combined mass of 180 kg). She has another student with a mass of 50 kg sit on a red cart. The students on the carts face each other and push off as hard as they can. After the push, the students on the blue cart are moving 5.0 m/'s In one direction. How fast is the student on the red cart moving in the other direction? (use the long equation above for the conservation of momenturn) (3 pts - you must show work) 2. What is the momentum (p) of a bullet with a mass of 0.16 kg that has just left the barrel of a gun at 800 m/s? (2 pts) Luke Aikens was traveling approximately 67 m/s during his record-breaking skydive into a net. Let's assume he has a mass of 80 kg. a. What is the change of momentum (Ap) that Luke experiences when hitting the net and coming to a complete stop? (2 points) (Show b. If it took the net 1.32 s to bring him to a stop, how much force was on Luke during that time? (2 points) (Show Work)