Ann and Bert are trying to roll a rock out of the way. Ann pushes with a force of 20 N in a northerly direction while Bert pushes with a force of 40 N in an easterly direction. What is the resultant force on the rock? (a) (b) Carla is trying to prevent Ann and Bert from moving the rock. What force must Carla apply to keep the rock in equilibrium?

Ann and Bert are trying to roll a rock out of the way. Ann pushes with a force of 20 N in a northerly direction while Bert pushes with a force of 40 N in an easterly direction. What is the resultant force on the rock? (a) (b) Carla is trying to prevent Ann and Bert from moving the rock. What force must Carla apply to keep the rock in equilibrium?

Physics for Scientists and Engineers

10th Edition

ISBN:9781337553278

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter3: Vectors

Section: Chapter Questions

Problem 15P: The helicopter view in Fig. P3.15 shows two people pulling on a stubborn mule. The person on the...

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The helicopter view in Fig. P3.15 shows two people pulling on a stubborn mule. The person on the right pulls with a force F1 of magnitude 120 X and direction of 1 = 60.0. The person on the left pulls with a force F2 of magnitude 80.0 N and direction of 2 = 75.0. Find (a) the single force that is equivalent to the two forces shown and (b) the force that a third person would have to exert on the mule to make the resultant force equal to zero. The forces are measured in units of newtons (symbolized N). Figure P3.15
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