a foam boulder has a mass of 2kg and a velocity of 20m/s. a stone boulder has the same velocity (20m/s) but a mass of 20kg. which of the two has more momentum? Explain.
The definition of momentum, which you apparently need to review, will tell you the answer. Please do not waste your time and ours passing on such trivial questions to others.
Since momentum = M*V and they both have the same velocity (V), the more massive stone boulder has more momentum.
To determine which of the two objects has more momentum, we need to calculate the momentum of each object. Momentum is given by the formula:
Momentum = mass * velocity
For the foam boulder:
Mass = 2 kg
Velocity = 20 m/s
Using the formula, we can calculate the momentum:
Momentum of foam boulder = 2 kg * 20 m/s = 40 kg m/s
For the stone boulder:
Mass = 20 kg
Velocity = 20 m/s
Using the formula again, we can calculate the momentum:
Momentum of stone boulder = 20 kg * 20 m/s = 400 kg m/s
As we can see, the momentum of the stone boulder is much greater (400 kg m/s) compared to the momentum of the foam boulder (40 kg m/s). Therefore, the stone boulder has more momentum than the foam boulder.
The reason for this difference is that momentum depends not only on the object's velocity but also on its mass. In this case, the foam boulder has a smaller mass compared to the stone boulder, leading to a smaller momentum, despite having the same velocity. The greater the mass of an object, the greater its momentum at the same velocity.