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Work is equal to Force * displacement * cos(angle between force and displacement). When there is uniform circular motion, the displacement is in the same direction as the velocity: along the tangent of the circle. The centripetal force always points towards the center of the circle. These two directions (vectors) are perpendicular to each other (90 degrees). Cos(90) = 0, so the work is 0.
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Is acceleration uniform in uniformly circular motion?
No, acceleration is not uniform in uniformly circular motion. In uniformly circular motion, the direction of the velocity vector is constantly changing, which means there is always a centripetal acceleration acting towards the center of the circle. This centripetal acceleration is not constant in magnitude, making the overall acceleration not uniform.
What supplies the centripetal force for the mass in uniform circular motion in this experiment?
The tension in the string provides the centripetal force for the mass in uniform circular motion in this experiment. This tension acts towards the center of the circular path, keeping the mass moving in a circular motion instead of following a straight line.
Does the centripetal force acting on an object in uniform circular motion do work on the object?
No
When an object is moving with uniform circular motion the centripetal acceleration of the object?
The centripetal acceleration of an object in uniform circular motion is directed towards the center of the circular path and is perpendicular to the object's velocity. It is responsible for changing the direction of the object's velocity, keeping it moving in a circular path.
What is the difference between centripetal and centrifugal forces and how do they affect the motion of objects?
Centripetal forces pull objects towards the center of rotation, keeping them in circular motion. Centrifugal forces push objects away from the center, counteracting centripetal forces. Together, they balance to maintain the object's circular path.
3 What factors affect the increase of the centripetal force on a particle in uniform circular motion?
The centripetal force on a particle in uniform circular motion increases with the speed of the particle and the radius of the circular path. The mass of the particle also affects the centripetal force, as a heavier particle requires a stronger force to keep it moving in a circle at a constant speed.
Is uniform circular motion accelerated?
Yes, uniform circular motion involves constant speed but changing direction, which means there is acceleration present in the form of centripetal acceleration directed towards the center of the circular path.
What is the direction of the centripetal force acting on a satellite that is in uniform circular motion around Earth?
The centripetal force acting on a satellite in uniform circular motion around Earth is directed towards the center of Earth. This force is necessary to keep the satellite moving in a circular path instead of following a straight line.
What factors affect the increase of the centripetal force on a particle in uniform circular motion?
Increase in radius affect the increase of the centripetal force on a particle in uniform circular motion. An increase in radius would cause a decrease in the force if velocity remains constant.
Do centripetal forces act by pushing an object towards or away from the center of circular motion?
Towards!
In uniform circular motion quantities are constant?
In uniform circular motion, the speed of the object remains constant, but the velocity changes direction continuously. The acceleration is directed towards the center of the circle (centripetal acceleration) and its magnitude remains constant. The object moves in a circular path at a constant speed.
What circular motion is one in which an oblect moves in a circular path at constant speed?
Uniform circular motion is when an object moves in a circular path at a constant speed. The object's velocity is constantly changing direction due to its circular motion, while its speed remains constant. This type of motion is an example of centripetal acceleration keeping the object moving in a circular path.
