A $20\mathrm{.}0-$m$-$long uniform beam weighing $620N$ rests on walls A and $B,$ as shown in the figure.

A $20\mathrm{.}0-$m$-$long uniform beam weighing $620N$ rests on walls A and $B,$ as shown in tr

Part A

Find the maximum weight of a person who can walk to the extreme end $D$ without tipping the beam.

Express your answer to two significant figures and include the appropriate units.

Previous Answers

Correct

Part B

Find the forces that the walls A and $B$ exert on the beam when the person is standing at $D.$

Express your answers using two significant figures separated by a comma.

$F_A,F_B=$ubrace$(brace)N$