Question

Lucia wants to change the motion map shown so that it shows uniform circular motion.

What change should Lucia make?


She should change the length of each vector that is tangent to the circle so that it is the same as the vector pointing toward the center at that point.

She should change the direction of the vectors that are toward the center of the circle so that each points tangent to the circle opposite the existing tangent vectors.

She should change the direction of the vectors that are toward the center of the circle so that each points away from the center of the circle.

She should change the lengths of the vectors that point toward the center so that each is the same length.

Answer 1

Just took the test. It's D. She should change the lengths of the vectors that point toward the center so that each is the same length.

Answer 2

This is all related to the centripetal force. Rememeber that In uniform circular motion, velocity changes due to change in direction, eventhough magnitude remains constant. having that in mind we know that She should change the direction of the vectors that are toward the center of the circle so that each points away from the center of the circle.