Solution : Frictional force is non-conservative force because friction depends upon the path followed by object.
Additionally, how do you prove a force is non conservative?
W A B , path – 1 = ∫ A B , path – 1 F → cons · d r → = W A B , path – 2 = ∫ A B , path – 2 F → cons · d r → . The work done by a non-conservative force depends on the path taken. Equivalently, a force is conservative if the work it does around any closed path is zero: W closed path = ∮ F → cons · d r → = 0 .
Also to know is, what do you mean by non conservative force give example?
A force is said to be non-conservative if the work done by the force depends on the path followed by the body, example: Frictional force, Air resistance, Viscous force.
What forces are non-conservative?
Non-conservative forces are dissipative forces such as friction or air resistance. These forces take energy away from the system as the system progresses, energy that you can’t get back. These forces are path dependent; therefore it matters where the object starts and stops.
What is a non conservative?
A nonconservative force is one for which work depends on the path taken. Friction is a good example of a nonconservative force. As illustrated in Figure 7.14, work done against friction depends on the length of the path between the starting and ending points.
What is non conservative force Class 11?
A non-conservative force is a force for which the work done depends on the path taken. Friction is an example of a non-conservative force. A force is said to be a non-conservative force if it results in the change of mechanical energy, which is nothing but the sum of potential and kinetic energy.
Why friction is non conservative force Quora?
Friction is by definition a force that opposes to motion, so the longer the path between point A and B, the higher the work (integral of the force with respect to displacement) so it cannot be conservative.