1.a modern train traveling at a constant speed around a circular track has a constant velocity true or false
2.which of the following would be affected if a soaring eagle change direction but remained at a constant speed? A.acceleration only B.velocity only C.acceleration and velocity D.neither acceleration or velocity
3.a cat is walking down the sidewalk iand spots a dog in a nearby yard. the cat starts to run in the opposite directionandthen quickly climbs a tree. which of the following changes most accurately describes the movement of the cat? A.change in speed B.change in distance C.change in velocity D.change in motion
1 false 2a 3a
question 1 is false
question 2 is 3
question 3 is 3
hope this helps
1. False. While a modern train traveling at a constant speed on a circular track will have a constant speed, it will not have a constant velocity. Velocity is a vector quantity that includes both speed and direction. Since the train is constantly changing direction on the circular track, its velocity is changing even though its speed remains constant.
To get the answer to this question, you need to understand the difference between speed and velocity and how they relate to each other in the context of circular motion.
2. D. Neither acceleration nor velocity. When a soaring eagle changes direction but remains at a constant speed, neither its acceleration nor its velocity is affected. Acceleration is the rate at which velocity changes, and since the speed remains constant, there is no change in velocity. Therefore, both acceleration and velocity remain unchanged.
To answer this question, you need to understand the definitions of acceleration, velocity, and how they relate to each other in the context of changing directions while maintaining a constant speed.
3. C. Change in velocity. When the cat spots the dog and starts running in the opposite direction and then quickly climbs a tree, the cat is experiencing a change in velocity. Velocity is a vector quantity that includes speed and direction. In this case, the cat changes its direction of motion, resulting in a change in velocity.
To answer this question, you need to understand the difference between speed, distance, velocity, and motion, and how they relate to each other in the context of the cat's movement.