A particle gets displaced by r = (2 i + 3 j + 4 k)m under the action of a force F = (7 i + 4 j + 3 k). The...

Question

A particle gets displaced by r = (2 i + 3 j + 4 k)m under the action of a force F = (7 i + 4 j + 3 k). The change in its kinetic energy is

Accepted Answer

(1)

JEE Main 2012 Physics question