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

Question

The downward forces represent the weights of machinery on the beam shown in (Figure 1) . Assume the beam is uniform and has a mass of 190kg .

a) Calculate

B for the beam.

The downward forces represent the weights of machinery on the beam shown in (Figure 1) . Assume the beam is uniform and has a mass of 190kg . Calculate FA for the beam. Calculate F 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.

Explanation / Answer

Fa+Fb = 4300+3100+2000=9400 N

by balancing torque at point a

10*Fb=2*4300+6*3100+9*2000=45200 Nm

Fb = 4520 N = 4.52 kN

Fa =9400 - 4520

=4880 N = 4.88 kN

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