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18] (b) The diagram below shows a uniform beam pivoted at P. The force of gravity on the beam is 425 N. 23" 3.4 m -8.4 m 720 N Determine the magnitude of the reaction force at the point. [12]
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Sagot :

okpalawalter8

We have that  the magnitude of the reaction force at the point. is

Pv=3832N

From the question we are told

18] (b) The diagram below shows a uniform beam pivoted at P. The force of gravity on the beam is 425 N. 23" 3.4 m -8.4 m 720 N Determine the magnitude of the reaction force at the point.

Generally the equation for the Resolutions  is mathematically given as

[tex]\sum y=0\\\\Where\\\\Pv+Tsin23=720\\\\Pv=720-Tsin23[/tex]

[tex]\sum x=0\\\\720*8.4=Tsin23 *3.4\\\\6048=3.4Tsin23\\\\T=4553N[/tex]

Therefore

the magnitude of the reaction force at the point. is

Pv=3832N

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