need help answering this question first person to answer with well explained step by step gets...

Question

Question

need help answering this question first person to answer with well explained step by step gets the points
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need help answering this question first person to

science physics

Answer 1

Answer #1

Suppose at point A reaction is R1

and B = R2

total load = 3xw+1/2x3xw=3x4+1/2x3x4

=12+6=18

so R1+R2 = 18

second equation from taking moment along A

ドー | L/2 where L =3

0=wL xL/2+ 1/2wxL (L+l/3)-R2X(2L)

R2 x 6=12x1.5+6(3+1)

R2X6=18+24

R2=3+4=7

from equation 1

R1=18-7

=11

Answer 2

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