![]() ![]() Yet, with the inward net force directed perpendicular to the velocity vector, the object is always changing its direction and undergoing an inward acceleration.įor more information on physical descriptions of motion, visit The Physics Classroom Tutorial. Without such an inward force, an object would continue in a straight line, never deviating from its direction. The net force is said to be an inward or centripetal force. The net force acting upon such an object is directed towards the center of the circle. The final motion characteristic for an object undergoing uniform circular motion is the net force. The animation at the right depicts this by means of a vector arrow. The direction of the acceleration is inwards. Nonetheless, it is accelerating due to its change in direction. An object undergoing uniform circular motion is moving with a constant speed. Accelerating objects are objects which are changing their velocity - either the speed (i.e., magnitude of the velocity vector) or the direction. The animation at the right depicts this by means of a vector arrow.Īn object moving in a circle is accelerating. Since the direction of the velocity vector is the same as the direction of the object's motion, the velocity vector is directed tangent to the circle as well. At all instances, the object is moving tangent to the circle. Explain the differences between centripetal acceleration and tangential acceleration resulting from nonuniform circular motion. As an object moves in a circle, it is constantly changing its direction. Use the equations of circular motion to find the position, velocity, and acceleration of a particle executing circular motion. Uniform circular motion can be described as the motion of an object in a circle at a constant speed. Multimedia Studios » Circular, Satellite, and Rotational Motion » Uniform Circular Motion ![]()
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