A25-kilogram mass travels east with a constant velocity of 40. meters per second. the momentum of this mass is

Momentum, a quantity of motion of a moving body, is mathematically defined as mass x velocity. Hence the magnitude of momentum of a 25-kg mass traveling at 40 m/s is 40x25 = 1000 kg-m/s. As momentum is directional in nature, momentum = (1000i + 0j + 0k) kg-m/s in vector notation (as body is traveling east)