Which of the following statements is true regarding an...

Name: Problem 48, Chapter :
Uploaded: 2019-08-29T17:19:41-08:00
Duration: 19 s
Channel: Salamat Ali
Description: Which of the following statements is true regarding an object undergoing uniform circular motion? Select two answers. (A) The velocity of the object must be constant. (B) The speed of the object must be constant. (C) The acceleration of the object must point away from the center of the circle. (D) The acceleration of the object must point toward center of the circle.

Which of the following statements is true regarding an object undergoing uniform circular motion? Select two answers. (A) The velocity of the object must be constant. (B) The speed of the object must be constant. (C) The acceleration of the object must point away from the center of the circle. (D) The acceleration of the object must point toward center of the circle.

Which of the following statements is true regarding an object
undergoing uniform circular motion? Select two answers.
(A) The velocity of the object must be constant.
(B) The speed of the object must be constant.
(C) The acceleration of the object must point away from the center of
the circle.
(D) The acceleration of the object must point toward center of the
circle.

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Key Concepts

Speed vs. Velocity

Speed is a scalar quantity that measures how fast an object is moving, regardless of its direction, whereas velocity is a vector quantity that includes both magnitude and direction. In uniform circular motion, the speed is constant, but the velocity is not constant because its direction continually changes as the object moves along the circle.

Centripetal Acceleration

Centripetal acceleration is the acceleration that acts on an object moving in a circular path, always directed toward the center of the circle. It is responsible for the continuous change in direction of the object's velocity vector while maintaining constant speed in uniform circular motion.

Uniform Circular Motion

Uniform circular motion refers to the movement of an object along a circular path at a constant speed. Although the speed remains constant, the direction of the velocity vector continuously changes due to the object's circular path, implying that the motion involves acceleration despite the unchanging speed.

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