MHT CET2010PhysicsOscillations
U is the PE of an oscillating particle and F is the force acting on it at a given instant. Which of the following is true ?
Options
- AU F +x=0
- B2 U F +x=0
- CF U +x=0
- DF 2 U +x=0
Correct answer
B. 2 U F +x=0
Step-by-step solution
The potential energy, U= 1 2 k x² 2 U=k x² or array l 2 U=-F x [ F=-k x] 2 U F =-x array or 2 U F +x=0