Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Chapter 18.2, Problem 1eTH
In the boxes at right, indicate the direction of the net force on the ruler at each of the two instants in part b. If the net force is zero, state that explicitly. Explain.
List all of the forces on each of your free-body diagrams that must be summed to obtain the net force. Explain.
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Chapter 18 Solutions
Tutorials in Introductory Physics
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- PROBLEM SET # 8: PARTICLE UNDER A NET FORCE On the space provided, present correct and organized solutions to the following answered problems. Box the final answers. Detach each page neatly and submit to your instructor. A 2.5-kg concrete block sliding on a vertical wall is being acted upon by a force P as shown in the figure below. Assume that the coefficient of kinetic friction between the 2. concrete block and the wall is 0.88. 148° (a) Draw the free-body diagram of the concrete block. (b) If the normal force exerted by the wall to the concrete block is 20.0 N, what would be the magnitude of the external force P, and (Ans: 37.74 N) (c) The acceleration of the block? (Ans: -15.56 m/s)arrow_forwardPROBLEM SET # 7: THE EQUILIBRIUM MODEL On the space provided, present correct and organized solutions to the following answered problems. Box the final answers. Detach each page neatly and submit to your instructor. 2. Block B hangs on a cable connected block A through a pulley as shown in the figure below. The two blocks are in equilibrium. Block B has a mass of 2.5 kg and the angle of the incline 6 is 35°. (a) What is the tension on the cable? (Ans: 24.5 N) (b) What is the mass of block A? (Ans: 4.36 kg)arrow_forwardWrite out Newton’s Second Law for each mass, showing the sum of forces from the free-body diagrams from step 1. Assume up is the positive for both diagrams. Show your work here.arrow_forward
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