JEE Main20249 Apr 2024Evening ShiftPhysicsWork, Power and EnergyActual
A force (3 x^2+2 x-5 ) N displaces a body from x=2 ~m to x=4 ~m . Work done by this force is ________ J .
Correct answer
0
Step-by-step solution
aligned & W= _ x₁ ^ x₂ F d x & W= ₂^4 (3 x^2+2 x-5 ) d x & W= [x^3+x^2-5 x ]₂^4 & W=[60-2] J=58 J aligned