AP EAMCET20225 Jul 2022Evening ShiftPhysicsWork, Power and EnergyActual
Consider a force F = Kx ^3 , which acts on a particle at rest. The work done by the force for displacement of 2 ~m is ( K =2 Nm ⁻³ )
Options
- A10 ~J
- B4 ~J
- C100 ~J
- D8 ~J
Correct answer
D. 8 ~J
Step-by-step solution
Work done = F dx = ₀^2 Kx ^3 dx =2 [ x ^4 4 ]₀^2= 2 4 [2^4-0^4 ]=8 ~J