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5 Questions around this concept.
A ball of mass m = 3 Kg is being pulled from the ground on a fixed rough hemispherical surface up to the top of the hemisphere with the help of a light inextensible string. Find work (in Joule) done by tension M in the string if the radius of the hemisphere is R = 1 m and the friction coefficient is
Assume that the block is pulled with negligible velocity
Conservative field-
In the conservative field, work done by the force depends only upon the initial and final position.
In the conservative field, work done by the force does not depend on the path.
In the conservative field, work done by the force along a closed path is zero.
Conservative force-
The forces of these type of fields are known as conservative forces.
Example: Electrostatic forces, gravitational forces, the spring force
Non-Conservative field-
In Non- conservative field, work done by the force depends on the path followed between any two positions/points.
In Non-conservative field, work done by the force along a closed path is non-zero.
Non-Conservative Force-
The forces corresponding to Non-Conservative field are known as non-conservative forces.
Non-Conservative Force is dissipative.
Example: Frictional force, Viscous force
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Physics Part II Textbook for Class XI
Page No. : 125
Line : 74
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