If work done by all the forces on a body is positive then it's kinetic energy

Statement -1: The work done by all forces on a system equals to the change in kinetic energy of that system . This statement is true even if nonconservative forces act on the system. Statement -2: The total work done by internal forces may be positive.

Work done by a force on an object is zero, if

Work done by a spning force is

Work done by a spring force is

STATEMENT-1 Work done by static friction in any reference frame is zero STATEMENT-2 If work done on the body is positive its kinetic energy increases.

Work energy theorem sys work done by all the force is equal to change in kinetic energy" In the diagram, a disc of mass M and radius R is rolling without slipping on a rough fixed inclined AB = l, V = velocity of disc at B . Choose the correct option(s)

Work done by frictional force

Asseration : Displacement time graph of a particle moving in a straight line is shown in figure. Work done by all the forces between time interval t_(1) and t_(2) is definitely zero. , Reason : Work done by all the forces is equal to change in kinetic energy.

Work energy theorem sys"work done by all the force is equal to change in kinetic energy" In the diagram, a disc of mass M and radius R is rolling without slipping on a rough fixed inclined AB = l, V = velocity of disc at B . Choose the correct option(s)