Average momentum during a race...?

Maurice Green is the current world record holder at 100m-dash with 9.72 seconds. He weighs 140 lbs. What is this average momentum during the race?|||Convert his weight to kilograms:


140 lb = 63.5 kg





p = m*v = m*(d/t) = (63.5)*(100)/(9.72) = 653 kg*m/s|||First, compute for the velocity:


V = d/t


V = 100 m / 9.72 s


V = 10.29 m/s





Now, compute for the momentum:


P = mv


P = 63.64 kg * 10.29 m/s the mass should be in kg, so you must divide 140 lbs. by 2.2





P = 654.86 kg(m/s)|||just convert the weight to mass, then find the velocity by 100/9.72 and multiply the mass and velocity for your answer...aka p=mv