A car moves at 20 meters in 2 seconds. What is the momentum of the car if it has a mass of 3,000 kg?

A football player runs across the field for a tackle. He has a momentum of 1,120 kg x m/s and is moving down the field at 10 m/s what is the mass of the player?

Anything helps I've looked for help and tried doing these I just don't get it!

2 answers

momentum=mass*velocity=2000*2/20 kgm/s

b. momentum=mass*velocity
mass=momentum/velocity
car: velocity = 20/2 m/s = 10 m/s
momentum = mass * velocity = 3000*10 kg x m/s

player: mass = momentum/velocity = 1120/10 = 112 kg.