A4-kg mass moving with speed 2 m/s, and a 2-kg mass moving with a speed of 4 m/s, are gliding over a horizontal frictionless surface. both objects encounter the same horizontal force, which directly opposes their motion, and are brought to rest by it. which statement best describes their respective stopping distances?
a) both masses travel the same distance before stopping.
b) the 2-kg mass travels twice as far as the 4-kg mass before stopping
c) the 2 kg mass travels greater than twice as far
d) the 4-kg mass travels twice as far as the 2-kg mass before stopping