To specify an object's velocity,we need to specify:

Name: To specify an object's velocity,we need to specify:
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Quizplus · Accepted Answer

To fully specify an object's velocity, we need to specify both how fast it is moving (speed or magnitude) and also in which direction it is moving. Therefore, choice D is the best option. Mass is not a factor in determining an object's velocity, only its momentum. Direction is also necessary because an object moving at the same speed in different directions would have different velocities.

To Specify an Object's Velocity,we Need to Specify