PHYSICS · Multi correct · CBSE · Physics · Work, Energy and Power · Work, Energy and Power
Problem
At two positions, the kinetic and potential energies of a particle are K1=10J, U1=−20J, K2=20J, and U2=−10J. In moving from position 1 to position 2:
(1) Work done by conservative forces is positive.
(2) Work done by conservative forces is negative.
(3) Work done by all the forces is positive.
(4) Work done by all the forces is negative.