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omeli [17]
2 years ago
7

I

Physics
1 answer:
valentinak56 [21]2 years ago
7 0

Answer:

mass is 56.25 N

Explanation:

F=ma

325=4m

m=325/4

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A man supports himself and the uniform horizontal beam pulling the rope with a force T.The weights of men and the beam are 883 N
artcher [175]

Answer:

T=502.5N

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Explanation:

The computation of the tension T in the rope and the forces exerted by the pin at A is shown below:

vertical forces sum = Ay + Tsin20 + T - 245 - 883 = 0

Now  

horizontal forces sum = Ax - Tcos70

Now Moment about B

-Ay × 4.8 + 245 × 2.4 + 883 × 1.8=0

Ay=453.6N

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Ax=171.8N

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