17-25. The door has a weight of 200 lb and a center of gravity at G. Determine the constant force F that must be applied to the door to push it open 12 ft to the right in 5 s, starting from rest. Also, find the vertical reactions at the rollers A and B. -6 f- - 6 ft – 12 ft 5 ft 3 ft

17-25. The door has a weight of 200 lb and a center of gravity at G. Determine the constant force F that must be applied to the door to push it open 12 ft to the right in 5 s, starting from rest. Also, find the vertical reactions at the rollers A and B. -6 f- - 6 ft – 12 ft 5 ft 3 ft

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 7.28P: The man pushes the 120-lb homogeneous crate with the horizontal force P. Determine the largest...

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Question

17-25. The door has a weight of 200 lb and a center of
gravity at G. Determine the constant force F that must be
applied to the door to push it open 12 ft to the right in 5 s,
starting from rest. Also, find the vertical reactions at the
rollers A and B.
-6 f-
- 6 ft –
12 ft
5 ft
3 ft

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