Two objects with different masses and different velocities have the same momentum. What must be true of the velocity of the more massive object?

The more massive object has a faster velocity than the less massive object.
The more massive object has a slower velocity than the less massive object.
The more massive object has the same velocity as the less massive object.

The more massive object must have a slower velocity than the less massive object in order to have the same momentum. Momentum is the product of mass and velocity, so in order for two objects with different masses to have the same momentum, the more massive object must have a lower velocity.