28. A student attempts to lift a uniform 3.4-kg beam off the floor and raise it to a vertical position. The beam is about to slide at this instant as shown in the diagram. Fr 78° 38 a) Find the magnitude of the force Fp. 13 N b) Find the magnitude and direction of the force exerted by the floor on the beam. 67°(ccw From f10or)

28. A student attempts to lift a uniform 3.4-kg beam off the floor and raise it to a vertical position. The beam is about to slide at this instant as shown in the diagram. Fr 78° 38 a) Find the magnitude of the force Fp. 13 N b) Find the magnitude and direction of the force exerted by the floor on the beam. 67°(ccw From f10or)

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 23P: While sliding a couch across a floor, Andrea and Jennifer exert forces FA and FJ on the couch....

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