To specify an object's velocity completely we need to specify


Asked by wiki @ in Physics viewed by 100 People


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.

Answered by wiki @


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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