in the given in figure determine T1:T2:T3
Answers
Answer:
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)
T
2
=T
3
+2g+2a=36+20+4
∴T
2
=60N
Explanation:
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(BRAINLIST)
Answer:
T 2 =60N
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) T 2 =T 3 +2g+2a=36+20+4
∴T 2 =60N
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