Answer to Question #116693 in Classical Mechanics for Tshepo

Question

In Fig. 2, a block of mass m lies on a horizontal frictionless surface and is attached to one end of a horizontal spring (spring constant k) whose other end is fixed. The block is initially at rest at the position where the spring is unstretched (x = 0) when a constant horizontal force F in the positive direction of the x axis is applied to it. A plot of the resulting kinetic energy of the block versus its position x is shown in Fig. 7-36. The scale of the figure’s vertical axis is set by Ks = 4.0 J. (a) What is the magnitude of F ? (b) What is the value of k?

Answer 1

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