two cubic block having masses 1kg and 2 kg respectively are connected by a string AB of mass 1 kg the blocks are placed on a smooth horizontal surface block of mass 1 kg is pulled by a horizontal force of magnitude 8 Newton. Find the tension in the string at points A and B.
Pls give me the ans along with free body diagram guy's..
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Answer:
The total mass of the system is m=2+1+1=4kg
Let a be the acceleration of the system.
Thus, ma=F or 4a=8 or a=2m/s
2
The tension at A is T
A
= mass of left block × acceleration =2×2=4N
and tension at B is T
B
= (mass of left block + mass of string AB)× acceleration =(2+1)×2=6N
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