1.

Two Masses 7kg and 12kg are connecting at the two ends of a light in extensible string. that passes over a frictionless pulley. find the Acceleration of masses and the tension of the string​

Answer» EQUATION of motion for MASS M  

1

​  

 :  M  

1

​  

a=T−M  

1

​  

G ...(1)

and for mass M  

2

​  

 : M  

2

​  

a=M  

2

​  

g−T ....(2)

(1)+(2)⇒a(M  

1

​  

+M  

2

​  

)=(M  

2

​  

−M  

1

​  

)g

or a=  

M  

1

​  

+M  

2

​  

 

(M  

2

​  

−M  

1

​  

)g

​  

=  

7+12

(12−7)(10)

​  

=(50/19)m/s  

2

 

From (1), T=M  

1

​  

(a+g)=7(50/19+10)=88.42N

pls MARK me brainliest if u understand my ans


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