Question

Which has more momentum: a 30 of mass that is stationary or a 0.30 kg mass moving at 1.0 m/s?

Answer 1

a 0.30 kg mass moving at 1.0 m/s

Step-by-step explanation:

p = mv

Momentum is the product of mass and velocity. Since a stationary object has velocity=0, it has momentum=0*mass=0

An object with positive mass and nonzero velocity will always have positive momentum, so we could stop here.

An object with m=0.3kg and v=1m/s has

p = mv = 0.3kg * 1m/s = 0.3kg*m/s

which is more than 0.

Answer 2

.30 kg mass moving at 1.0 m/s

Step-by-step explanation:

Well if the 30 mass isn't moving, then that isn't momentum. But if the .30 kg of mass if moving, then that would be momentum. So the correct answer is .30 kg of mass