Question

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.

Answer 1

Answer:

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.

Answer 2

Answer:

Explanation:

When an object is moving around a circle, with a constant speed, it means the magnitude of velocity is constant but the direction of motion keeps on changing every instant. So, the velocity remains variable.