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What are conservative forces? Explains
Conservative forces are those for which the work done on an object depends only upon the initial and final positions of the object, not on the route taken between them. That property guarantees that when an object is moved under the influence of a conservative force and returns to its original positRead more
Conservative forces are those for which the work done on an object depends only upon the initial and final positions of the object, not on the route taken between them. That property guarantees that when an object is moved under the influence of a conservative force and returns to its original position, the total work done by the force is zero.
One of the most important characteristics of conservative forces is that they are associated with potential energy. When an object moves in a conservative force field, its potential energy changes, and this change is equal to the work done by the force. Thus, for example, in the gravitational field, when an object is lifted, it gains potential energy equal to the work done against gravity.
In addition, conservative forces are necessary in the principle of energy conservation. The total mechanical energy—potential and kinetic energy—is conserved in systems affected by these forces. Energy can be transformed from potential to kinetic form and vice versa; however, its total is kept constant.
Examples of conservative forces include gravitational force, electrostatic force, and spring force. These forces are fundamental in classical mechanics, explaining various physical phenomena and the behavior of systems in motion and energy transfer.
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Which law explains the principle of conservation of momentum?
Newton's third law ensures that action and reaction forces result in momentum conservation in isolated systems. This question related to Chapter 4 physics Class 11th NCERT. From the Chapter 4 Laws of motion. Give answer according to your understanding. For more please visit here: https://www.tiwariaRead more
Newton’s third law ensures that action and reaction forces result in momentum conservation in isolated systems.
This question related to Chapter 4 physics Class 11th NCERT. From the Chapter 4 Laws of motion. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-4/
What is the relationship between momentum ( 𝑝 ) and force ( 𝐹 )?
Force is the rate of change of momentum, expressed as 𝐹 = 𝑑𝑝/𝑑𝑡. This question related to Chapter 4 physics Class 11th NCERT. From the Chapter 4 Laws of motion. Give answer according to your understanding. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chaRead more
Force is the rate of change of momentum, expressed as 𝐹 = 𝑑𝑝/𝑑𝑡.
This question related to Chapter 4 physics Class 11th NCERT. From the Chapter 4 Laws of motion. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-4/
Derive an expression for the kinetic energy of a body of mass m moving with velocity v.
To derive the kinetic energy expression, we begin with the work-energy relationship. The work-energy principle states that work done on an object is equal to the change in its kinetic energy. Work done when a force acts on an object can be expressed as force times distance, causing the body to moveRead more
To derive the kinetic energy expression, we begin with the work-energy relationship. The work-energy principle states that work done on an object is equal to the change in its kinetic energy. Work done when a force acts on an object can be expressed as force times distance, causing the body to move some distance in the direction of the applied force.
By Newton’s second law, force is defined as the product of mass and acceleration. If a body has acceleration, there is a change in its velocity. If the body starts from rest and the acceleration is uniform, its final velocity is determined by the distance and the acceleration of the body.
Putting the definition of force and distance into the equation for work done, we arrive at the work done on the object being related to its mass and the square of its velocity. The work done to accelerate an object from rest to some velocity goes directly into its kinetic energy.
Therefore, kinetic energy is defined as the energy an object has due to its motion, dependent on its mass and the square of its velocity. Therein, the interrelation of both mass and speed shows how important those values are in establishing the energy belonging to moving objects.
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Which force opposes the relative motion between two surfaces in contact?
Friction opposes the relative motion or attempted motion between two surfaces. This question related to Chapter 4 physics Class 11th NCERT. From the Chapter 4 Laws of motion. Give answer according to your understanding. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-Read more
Friction opposes the relative motion or attempted motion between two surfaces.
This question related to Chapter 4 physics Class 11th NCERT. From the Chapter 4 Laws of motion. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-4/