In the figure shown, the 12kg body pulled by a string with an acceleration a=2.2m/s2. The tension T1 and T2 will be respectively (Take g=9.8m/s2)
A
200N,80N
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B
240N,90N
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C
240N,96N
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D
260N,96N
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Solution
The correct option is C240N,96N Considering FBD of combined mass of 20kg, T1−mg=ma=20(9.8+2.2)=240N Considering FBD of 8kg mass, T2−mg=ma=m(a+g)=8×(2.2+9.8)=96N