Looking for understanding of very basic force questions

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The discussion focuses on calculating the forces exerted on two pylons by a steel beam with a weight of 700 N. The beam measures 3 meters in length, with Pylon A positioned 30 cm from one end and Pylon B 60 cm from the other end. The calculated forces are 300 N on Pylon A and 400 N on Pylon B, derived from the principles of static equilibrium, where the sum of upward forces equals the sum of downward forces and moments about any point are balanced.

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1. Can someone explain how to work out the force on 2 pylons from a steel beam laid between them.
Beam 3mtrs
Pylon A 30cm from end Pylon B 60cm from other end
Beam has 700 N weight



I have the answers of A 300N and B 400N but not sure how to get there.


Sorry but its over 30yrs since I did this and my daughter is just starting to learn.
Any help appreciated
 
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Since the body in static, there is no rotational or translational motion.
Take moment at any point, CCW moment equal to CW moment.
For traslational motion, upward force equal to downward force.
 

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