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An object moves in a circle at constant speed. The work done by the centripetal force
is zero because:
1. the displacement for each revolution is zero
2. the average force for each revolution is zero
3. there is no friction
4. the magnitude of the acceleration is zero
5. the centripetal force is perpendicular to the velocity
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Why work done by centripetal force during half rotation is zero?
The centripetal force always acts perpendicular to the displacement of the object moving in a circular path. Since the work done is the product of force and displacement in the direction of force, and the displacement is perpendicular to the centripetal force, the work done by the centripetal force over a full rotation is zero.
Is Work done by centripetal force is zero?
An object moves in a circle at constant speed. The work done by the centripetal force is zero because: 1. the displacement for each revolution is zero 2. the average force for each revolution is zero 3. there is no friction 4. the magnitude of the acceleration is zero 5. the centripetal force is perpendicular to the velocity
Why is the workdone by centripetal force is zero?
The work done by a centripetal force is zero because the force is always directed towards the center of the circular motion, while the displacement is perpendicular to the force. This means that the angle between the force and the displacement is 90 degrees, resulting in zero work being done.
When is work done though displacement is zero?
When an object is propelled by a non-centripetal force through a closed path.
Can a centripetal force ever do work on an object. explain?
No, a centripetal force does not do work on an object because the force is perpendicular to the displacement of the object. Work is only done when a force applied on an object causes displacement in the direction of the force.
What is the work done by a body moving along a circular path?
The work done by a body moving along a circular path is zero if the force is perpendicular to the direction of motion, such as in the case of centripetal force. This is because the displacement is perpendicular to the force. If there is a component of the force in the direction of the motion, work is done, calculated as the dot product of the force and displacement vectors.
What are the conditions of zero work?
Zero work is done when there is no displacement of the object in the direction of the force applied or when the force applied is perpendicular to the direction of motion. Another condition for zero work is when the force applied is zero.
How much work is done by the centripetal force on a body along a circular path?
The work done by the centripetal force on a body along a circular path is zero. This is because the centripetal force acts perpendicular to the direction of motion of the body, so it doesn't do any work in changing the kinetic energy of the body. The energy is instead redirected to maintain the circular motion.
Explain why a centripetal force does not do work on a circularly moving object?
A centripetal force does not do work on a circularly moving object because the force is always directed towards the center of the circle, while the object moves tangentially to the circle. Since work is defined as force acting in the direction of displacement, the centripetal force and the displacement are perpendicular to each other, resulting in no work being done.
When body moves in a circular path how much work is done by the body?
Zero. This is because when a body when around in a circle, a centripetal force acts on the particle to keep it at that fixed distance from the centre. At each point, the force and the displacement are perpendicular to each other. Hence no work is done. The answer is NOT Zero! A Force is required in the direction of motion around the circle. At every point (an infinite number of them) there must be a Force PERPENDICULAR to the Centrifugal and Centripetal Forces or the object would not move. Therefore the amount of work done is the product of that FORCE times the circumference of the circular path, if only considering one revolution.
What is work done if there is nodisplacement is 0?
Work Done = Force x Displacement, so if the displacement is zero, the work done will be zero. There will be no work done.
Is it possible workdone is zero although body is moving?
Yes, it is possible for the work done on an object to be zero even though the object is moving. This can occur when the force applied is perpendicular to the direction of motion, so no work is done in the direction of motion.
