PLEASE DO NOT ROUND.KEEP IT 3 SIG FIGS.. ALL MY ANSWER ARE CORRECT EXCEPT THE LA

Question

PLEASE DO NOT ROUND.KEEP IT 3 SIG FIGS.. ALL MY ANSWER ARE CORRECT EXCEPT THE LAST ONE .. I AM NOT SURE WHAT I AM DOING WRONG

Mapoob this question was wittenby John Carlson at University of Colorado, Denver sapling learning A uniform 250kg beam is supported by a cable as shown. The lower end rests on the floor as shown. What is the tension in the cable?Number 2700 150 What is the strength of the normal force at the beam contact point with the ground? Number 73.87 40 What is the strength of the frictional force between the beam and the floor? Number 18.5 Previous Check Answer Next Exit

Explanation / Answer

part 3)
angle made by thread with horizontal = (180 - 160) + 40

= 60 degrees

now Apply net force on the rod in x-direction, Fnetx = 0

T*cos(60) - Fk = 0

Fk = T*cos(60)

= 2700*cos(60)

= 1350 N <<<<<<----------------Answer

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