Identify the correct statement about work energy theorem.

Options

A. Work done by all the forces is equal to the decrease in potential energy.
B. Work done by all the forces except the conservative is equal to the change in mechanical energy.
C. Work done by all the forces is equal to the change in kinetic energy .
D. Work done by all the forces is equal to the change in potential energy

Answer

B, C

Explanation

Work done by conservative force `=-DeltaU`,
`Work done by all the forces `=Delta K`
Work done by forces other than conservative forces
`=Delta E`.