AP EAMCET202317 May 2023Evening ShiftPhysicsWork, Power and EnergyActual
If a body has a potential energy of (4 x^2+2 x ) J at a height of 2 ~m , then the force acting on the body is
Options
- A9 ~N
- B27 ~N
- C18 ~N
- D0 ~N
Correct answer
C. 18 ~N
Step-by-step solution
Potential energy, U= (4 x^2+2 x ) J Force, F = dU dx aligned & F= d d x (4 x^2+2 x )=8 x+2 & at x=82 m & F=18 N aligned The force acting on the body is 18 ~N .