1) velocity is a vector quantity that has both magnitude and direction. using complete sentences, describe the object's velocity. comment on both the magnitude and the direction.2) true or false? if an object moves in a circle at a constant speed, its velocity vector will be constant. explain your answer.

1) The velocity of an object is the rate of change of its position with respect to a frame of reference and is a function of time. Velocity is equivalent to a specification of an object's speed and direction of motion.

2) The statement "If an object moves in a circle at a constant speed, its velocity vector will be constant" is False.

Solution :

1) The velocity of an object is the rate of change of its position with respect to a frame of reference and is a function of time. Velocity is equivalent to a specification of an object's speed and direction of motion.

2) If an object moves in a circle at a constant speed but the direction of velocity changes. Therefore, velocity vector is not constant.Hence the statement is False.

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1) See explanation below, 2) False.

Explanation:

1) The velocity of an object is equal to the instaneous rate of change of its position vector in time with respect to a reference point. Each component of the vector represents the rate of change of the position component in time.

2) An object moving in a circle at constant speed has a constant magnitude but a changing direction, meaning that velocity vector is not constant. Hence, the statement is FALSE.

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