Physics-
General
Easy

Question

A particle of mass m is constrained to move on x-axis. A force F acts on the particle. F always points toward the position labeled E. For example, when the particle is to the left of E, F points to the right. The magnitude of F is a constant F except at point E where it is zero. The system is horizontal. F is the net force acting on the particle. The particle is displaced a distance A towards left from the equilibrium position E and released from rest at t = 0. What is the period of the motion?

  1. 4 open parentheses square root of fraction numerator 2 A m over denominator F end fraction end root close parentheses    
  2. 2 open parentheses square root of fraction numerator 2 A m over denominator F end fraction end root close parentheses    
  3. open parentheses square root of fraction numerator 2 A m over denominator F end fraction end root close parentheses    
  4. None    

The correct answer is: 4 open parentheses square root of fraction numerator 2 A m over denominator F end fraction end root close parentheses

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