In the system shown in the figure below, a horizontal force F_x acts on an objec
ID: 1438147 • Letter: I
Question
In the system shown in the figure below, a horizontal force F_x acts on an object of mass m? m_2 = 9.5O kg. The horizontal surface is frictionless; Consider the acceleration of the sliding object as a function of F_x. For what values of F_x does the object of mass m_1 = 4.30 kg accelerate upward? (Indicate the direction of the force with the sign of your answer. Let the positive x direction be to the right.) For what values of F_x, is the tension in the cord? (Indicate the direction of the force with the sign of your answer. Let the positive x direction be to the right.) Plot the acceleration of the m_2 object versus F_x, Include values of F_x from -100 N to +100 N. (Do this on paper. Your instructor may ask you to turn in this work.).Explanation / Answer
a)
m1 will accelerate upward if
Fx > m1g
Fx > +42.14 ( positive x axis)
b)
Tension in the cord will be zero if acceleration of m2>g towards left
Fx <= -m2 g
Fx <= -93.1 N