My Math Forum 3D Statics problem, box on an incline

 Physics Physics Forum

 May 15th, 2019, 10:08 AM #1 Newbie   Joined: May 2019 From: moscow Posts: 4 Thanks: 0 3D Statics problem, box on an incline Hello Got a following problem: Box that weighs 300N in resting on a frictionless incline. Incline is on the Z-plane. Box is held at Place by cable AB and force F. Force F is in the direction -Z. Determine the tension in the cable AB and the force F. Components go as follows: $\displaystyle sum Fx =0 (3.2/6.21)AB=0$ $\displaystyle sum Fy=0 (-4.4/6.21)AB-300N=0$ $\displaystyle sum Fz=0 (-3/6.21)AB-F=0$ 6.21 is the lenght of AB by my calculations and ABx is 3.2m ABy is -4.4m and ABz is -3m Correct answer to this problem is 104N and 215N. and so far i have not gotten even close to these im not even sure if my equations of equilibrium are correct. Help desperately needed. Thanks. Picture of problem: https://imgur.com/a/01fNriK
 May 15th, 2019, 12:05 PM #2 Math Team     Joined: Jul 2011 From: Texas Posts: 3,002 Thanks: 1588 $\vec{F} + \vec{W} + \vec{T} + \vec{F_N} = 0$ Looks like you forgot the normal force exerted on the box by the incline ...

 Tags box, incline, problem, statics

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post cvbody Physics 0 September 14th, 2018 07:33 PM Volle Physics 2 July 5th, 2016 12:52 PM geryuu Calculus 1 November 30th, 2013 03:11 PM long_quach Applied Math 7 April 5th, 2013 08:03 PM

 Contact - Home - Forums - Cryptocurrency Forum - Top