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1. The figure below shows a plot of potential energy U versus position x of a 0.

ID: 1791617 • Letter: 1

Question

1. The figure below shows a plot of potential energy U versus position x of a 0.100 kg particle that can travel only along an x axis under the influence of a conservative force. There are no other forces acting upon the particle. The graph has these values: Ua = 9.00 J, UB = 12.00 J. Uc= 20.00 J. and Up = 24.00 J. The kinetic energy of the particle at x-5.00 m is KB-4.00 J d) Find the magnitude and the direction of the force on the particle in the region between x = 1.0 m and x = 3.0 m. 1 245 67 89 x (m)

Explanation / Answer

force = - slope of the graph

F = -dU/dx

F = -((Uc - UA)/(3-)

F = -(20 - 9)/2

F = -11/2 = -5.5 N


magnitude 5.5 N


direction = - x axis