Randall D. Knight — Dynamics I: Motion Along a Line: Problem 72

In Problems 71 through 73 you are given the dynamics equations that are used to solve a problem. For each of these, you are to: a. Write a realistic problem for which these are the correct equations. b. Draw the free-body diagram and the pictorial representation for your problem. c. Finish the solution of the problem. \[ T - 0.20n - (20\text{ kg})(9.80\text{ m/s}^2) \sin 20^\circ = (20\text{ kg})(2.0\text{ m/s}^2) \] \[ n - (20\text{ kg})(9.80\text{ m/s}^2) \cos 20^\circ = 0 \]