Create your own problem, show your math work solving for it, and compare Force acting upon a mass(kg) given two different speeds(time in seconds) in which a collision takes place:

Pick a mass in kilograms:
E.g. I have a mass of about 82.0kg, a new popular cell phone has a mass of 0.204kg.

Pick a Velocity in meters per second to decelerate from:
E.g. I’m going 55m/h which equals 24.6 m/s

Calculate initial momentum of the object:
E.g.
P = mv
P = 82kg x 24.6 m/s
Pi = 2020 kg*m/s

Pick a fast deceleration:
E.g. I’m NOT wearing my seatbelt and I crash into a wall coming to 0 m/s in just 0.20 seconds

Pick a slower deceleration:
E.g. I am wearing my seatbelt and my velocity changes over 0.91 seconds.

What Force acts on the mass in the faster deceleration? (Show your work and include correct final units):
E.g.
Fnet = Pf – Pi /t
F = (0 kg*m/s – 2020 kg*m/s)/0.2s
F = -2020 kg*m/s ÷ 0.20s
Force = -10,000 Newtons (or kg*m/s2)

What Force acts on the mass in the slower deceleration? (Show your work and include correct final units):
E.g.
Fnet = Pf – Pi /t
F = (0 kg*m/s – 2020 kg*m/s)/0.91s
F = -2020 kg*m/s ÷ 0.91s
Force = -2,200 Newtons

This has me stuck.. Any help is appreciated :)