Problem

Problem

At two positions kinetic energy and potential energy of a particle are K1=10 J:U1=−20 JK_1 = 10 \text{ J} : U_1 = -20 \text{ J} , K2=20 JK_2 = 20 \text{ J} , U2=−10 JU_2 = -10 \text{ J} . In moving from 1 to 2 a. work done by conservative forces is positive b. work done by conservative forces is negative c. work done by all the forces is positive d. work done by all the forces is negative

Browse the problem library