21-23. Show that if the angular momentum of a body is determined with respect to an arbitrary point A, then H, can be expressed by Eq. 21–9. This requires substituting PA = PG + PG/A into Eq. 21-6 and expanding, noting that SPg dm = 0 by definition of the mass center and VG VA + co X PG| A- PGJA PG PA

21-23. Show that if the angular momentum of a body is determined with respect to an arbitrary point A, then H, can be expressed by Eq. 21–9. This requires substituting PA = PG + PG/A into Eq. 21-6 and expanding, noting that SPg dm = 0 by definition of the mass center and VG VA + co X PG| A- PGJA PG PA

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.11P: Solve Prob. 7.10 assuming that the pick-up truck has front-wheel drive.

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