Question

Calculate the tension in the string shown in the figure. All the surfaces are frictionless. Both the blocks have a mass of 1kg. (Take g= $10m/s^2$)

• A. 5 N
• B. 10 N
• C. 7 N
• D. 2 N

Answer 1

The correct option is A 5 N

Writing equation of motions for two blocks,

$mg-T=ma$

$T=ma$

Adding these two we get,

$2T=mg$

$⟹T=0.5mg=0.5\times 1\times 10=5N$

Option A is correct.