Question

How to find T1,T2 and T3for to machanism,The beam is uniform and weigh 800N.​

Answer 1

Explanation:

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Answer 2

Explanation:

From Newtons 2nd law

∑f

y

=ma

y

⇒T

3

−3g=ma

⇒T

3

−3g=3a..........(i)

T

2

−m

2

g−T

2

=m

2

a

⇒T

2

−T

3

−2g=2a

T

2

−T

3

=2g+2a...........(ii)

T

1

−5g−T

2

=5a

⇒T

1

−T

2

=5g+5a..........(iii)

add (i),(ii) and (iii)

T

3

−3g=3a

T

2

−T

3

=2g+2a

T

1

−T

2

=5g+5a

T

1

=3g+3a+2g+2a+5g+5a

from eq(1) T

1

=10g+10a

g=10m/s

2

=10g×10×2=10×10+10×2

=1W+20=120N

from eq (ii)

T2=T3+2g+2a=36+20+4

∴T

2

=60N