SOLUTION: a bus of total weight 20000n is packed 5m from one end of a bridge of uniform weight 60000n. if the length of the bridge is 20m calculate the reaction at the supports.

Question 1013088: a bus of total weight 20000n is packed 5m from one end of a bridge of uniform weight 60000n. if the length of the bridge is 20m calculate the reaction at the supports.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Let A be the reaction at the left side of the bridge, B the reaction at the right.
Force equation:

Moment equation (using the left reaction point as zero point):

Then,

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