Which of the following force is non-conservativea)Restoring force of springb)Force between two stationary massesc)Force between two stationary chargesd)Human push or pullCorrect answer is option 'D'. Can you explain this answer?

Question

Answer

Force between two stationary mass is gravitational force which is conservative. between two charge is electrostatic.. muscular force is non conservative because we did work it lost or appear in form of heat and we need to eat food to gain energy for work done ..

Answer

Human are ediotic in nature,,,, so no one can judge or believe them.. So no momentum or energy is conserved...

Answer

Non-Conservative Force - Human push or pull

Definition of a Non-Conservative Force:
A non-conservative force is a type of force that does not conserve mechanical energy. When an object is moved in a closed loop, the work done by a non-conservative force is not zero. This means that the total mechanical energy of the system is not conserved.

Restoring Force of a Spring:
The restoring force of a spring is a conservative force. When a spring is stretched or compressed, it exerts a force on the object attached to it in the opposite direction. This force is directly proportional to the displacement from the equilibrium position. The work done by the restoring force of a spring is always zero when the object is moved in a closed loop. Therefore, the restoring force of a spring is a conservative force.

Force between Two Stationary Masses:
The force between two stationary masses, such as the force of gravity, is a conservative force. The gravitational force between two objects is always directed towards the center of mass and is proportional to the product of their masses and inversely proportional to the square of the distance between them. The work done by the force of gravity is zero when the objects are moved in a closed loop. Hence, the force between two stationary masses is a conservative force.

Force between Two Stationary Charges:
The force between two stationary charges, such as the force of electrostatics, is a conservative force. The electrostatic force between two charges is always directed along the line joining the charges and is proportional to the product of their charges and inversely proportional to the square of the distance between them. The work done by the electrostatic force is zero when the charges are moved in a closed loop. Therefore, the force between two stationary charges is a conservative force.

Human Push or Pull:
Unlike the other forces mentioned above, a human push or pull is a non-conservative force. When a person applies a force to an object by pushing or pulling it, the work done by the force is not zero when the object is moved in a closed loop. This is because the energy used to push or pull the object is not conserved. The work done by a human push or pull depends on the path taken by the object and not just the initial and final positions. Therefore, a human push or pull is a non-conservative force.

In conclusion, the correct answer is option 'D' - Human push or pull because it is a non-conservative force, unlike the other forces mentioned, which are conservative forces.

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