Abowling ball has a mass of 5 kg. what happens to its momentum when its speed increases from 1 m/s to 2 m/s?

a) the initial momentum is 5 kg"m/s, and the final momentum is 10 kg"m/s.

b) the initial momentum is 5 kg"m/s, and the final momentum is 3"kg m/s.

c) the initial momentum is 5 kg"m/s, and the final momentum is 7 kg"m/s.

d) the initial momentum is 5 kg"m/s, and the final momentum is 20 kg"m/s.

(i think this is physics not sure)

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?