Engineering
Physics
Potential Energy Conservative Forces and Non Conservative Forces
Equilibrium
Calculus
Question
Potential energy and position for a conservative force are plotted in graph shown. Then force position graph can be
Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.
Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA
Solution
The force F is related to potential energy U by the equation: . This means the force is the negative slope of the U-x graph.
Analyzing the given U-x graph: the slope is positive and constant from x=0 to x=a, so F is negative and constant. From x=a onward, the slope is zero, so F is zero.
The correct force-position graph must show a constant negative force for 0
Final Answer: The third option.