The downward forces represent weights of machinery on the beam shown in (Figure

Question

The downward forces represent weights of machinery on the beam shown in (Figure 1). Assume the beam is uniform and has a mass of 340 kg. Calculate F_A for the beam. Express your answer to two significant figures and include the appropriate units. Enter positive value if the force is upward and negative value if the force is downward. F_A = Calculate F_B for the beam. Express your answer to significant figures and include the appropriate units. Enter positive value if the force is upward and negative value if the force is downward. F_B =

Explanation / Answer

Here ,

part A)

for the force FA

balancing the moment of forces about B

FA * (10) - 4300 * 8 - 3100 * 4 - 2200 * 1 - 340 * 9.8 * 5 = 0

solving for FA

FA = 6566 N

the force FA is 6566 N

part B)

for the vertical forces

FA + FB = 4300 + 3100 + 2200 + 340 * 9.8

6566 + FB = 4300 + 3100 + 2200 + 340 * 9.8

FB = 6366 N

the force FB is 6366 N

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