Three blocks connected together by strings are pulled along a horizontal surface by applying force F. If T_(3)=36 N, What is tension T_(2) ?

Three blocks connected together by strings are pulled along a horizont

1.	Three blocks connected together by strings are pulled along a horizontal surface by applying force F. If T_(3)=36 N, What is tension T_(2) ?
Answer» SOLUTION :Suppose SYSTEM slides with acceleration .a.. Then for MOTION of blocks, `T_(3)=F=(m_(1)+m_(2)+m_(3))a` `T_(3)=36 a, i.e., a=(T_(3))/(36)=1m//s^(2), T_(3)-T_(2)=27a` From above equation, `36-T_(2)=27xx1 therefore T_(2)=9N`