in a uniform circular motion map, what is always true? check all that apply.\nthe dots are different…

in a uniform circular motion map, what is always true? check all that apply.\nthe dots are different distances apart.\nacceleration vectors point in the direction of motion.\nvelocity vectors are always perpendicular to the circle.\nacceleration vectors point toward the center of the circle.\nvelocity vectors are the same length.

in a uniform circular motion map, what is always true? check all that apply.\nthe dots are different distances apart.\nacceleration vectors point in the direction of motion.\nvelocity vectors are always perpendicular to the circle.\nacceleration vectors point toward the center of the circle.\nvelocity vectors are the same length.

Answer

Brief Explanations:

  • In uniform circular motion, the speed is constant, so velocity vectors have the same length. The velocity is tangent to the circle at any point, so velocity vectors are perpendicular to the radius (not the circle itself in a strict sense but perpendicular to the line - from the center to the point of interest). The acceleration is centripetal, always pointing towards the center of the circle. The dots in a motion - map represent equal time intervals, and since speed is constant, they are equal distances apart. The acceleration vector is perpendicular to the velocity vector and points towards the center, not in the direction of motion.

Answer:

  • D. Acceleration vectors point toward the center of the circle.
  • E. Velocity vectors are the same length.