Consider the directions of the velocity and the acceleration vectors of an object in uniform
circular motion.
A. Both vectors point away from the center.
B. The velocity points along the tangent, and the acceleration is zero, since the
speed is constant.
C. The velocity points along the tangent, and the acceleration points away from the
center.
D. The vectors are perpendicular.
E. Both vectors point toward the center
( I think it is B but I am not too sure)
google "uniform circular motion"
look at the diagrams on wikipedia
nope, not B. What about D?
To determine the correct answer, we need to understand the behavior of velocity and acceleration in uniform circular motion.
In uniform circular motion, the object moves in a circular path with a constant speed. However, the velocity and acceleration vectors have different directions.
A. Both vectors point away from the center: This is incorrect because both the velocity and acceleration vectors in uniform circular motion do not point away from the center.
B. The velocity points along the tangent, and the acceleration is zero, since the speed is constant: This is incorrect too. The velocity vector indeed points along the tangent to the circular path, but the acceleration is not zero. Even though the speed is constant, the direction of motion is changing.
C. The velocity points along the tangent, and the acceleration points away from the center: This is the correct answer. The velocity vector always points tangent to the circular path, indicating the direction of motion. The acceleration vector points towards the center of the circle, which is necessary to maintain the object's curved path.
D. The vectors are perpendicular: This is incorrect since the velocity and acceleration vectors in uniform circular motion are not perpendicular to each other.
E. Both vectors point toward the center: This is incorrect because the velocity vector points tangent to the circular path, while the acceleration vector points towards the center.
Therefore, the correct answer is C. The velocity points along the tangent, and the acceleration points away from the center.