clatrive
When an object moves in a circular path, it accelerates toward the center of the circle due to the centripetal acceleration. This acceleration is necessary to keep the object moving in a curved path rather than in a straight line.
If I had to pick one of the two I'd say false, though "extremely poorly worded question" would be a much better choice. In order to travel in a circular path an object must be accelerated towards the center of the circle. Any physics teacher who asks this question of students deserves a sudden sharp acceleration upside the head.
Centripetal motion refers to the inward force that keeps an object moving in a curved path. This force is always directed toward the center of the circular path. It is responsible for keeping objects like planets in their orbits around the sun.
A Partial ExplanationFirst, consider the object moving in a straight line with no forces acting upon it. According to Newton's First law, that object will always move in the same direction, at the same speed, forever. This is inertia.Now, for that object to move in a circular path, a force must act upon the object. If the force is in opposite direction of the object, the object will eventually slow down, stop, and begin reversing. The degree of slowing depends on duration and amount of force. Similarly, forces in the same direction of the object would increase velocity.Since the question asks about "uniform" circular motion, we'll assume uniform in both speed and geometry; and a uniform speed shows that no force is acting in the same direction, or the opposite direction of the object.So far, we know that there an object moving uniformly, and thus there's a force being acted upon it. Yet, we also know that force is neither "forwards or backwards." One more thing is the question asks for circular motion, not globular, so that makes this a two dimensional problem.So if there are only two dimensions to choose from, and we've eliminated the one the object is moving on, then there can only be a force acting perpendicular to the path of the object. If that path is circular, then that force will always be towards the center of the circle.Basically, think of the circle not as a long continuous path with constant force (even though it is) but as a whole series of little straight paths with a force knocking it to the side all the time, toward the center of rotation.
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clatrive
Centripetal
Centripetal force is the force toward the center of a circular path. It is often confused with centrifugal force, which is the force away from the center.
Centrifugal
The force moving toward a center is called centripetal force. It is responsible for keeping an object in circular motion by pulling it towards the center of the circle. Without this force, the object would move in a straight line tangential to the circle.
Centripetal force is the force that acts on an object moving in a circular path and is directed towards the center of the circle. It is responsible for keeping an object moving in a circular motion instead of flying off in a straight line.
When an object moves in a circular path, it accelerates toward the center of the circle due to the centripetal acceleration. This acceleration is necessary to keep the object moving in a curved path rather than in a straight line.
The centripetal force is responsible for pulling objects toward the center of a circle as they move in a curved path. This force acts perpendicular to the velocity of the object, keeping it on a circular trajectory.
The word is "gravity." It refers to the force of attraction that exists between any two masses, and it is responsible for pulling objects toward the center of another object, such as the Earth.
The force being tested is gravity, which is pulling the object downward toward the center of the Earth. This force is responsible for the weight of the object and is a fundamental force in the universe.
That's called 'centripetal acceleration'. It's the result of the centripetal forceacting on the object on the curved path.
Centripal acceloration is the net force when an object moves in a circular path.