An inextensible massless string goes over a frictionless pulley. Two weights of 100 N and 200 N are attached to the two ends of the string. The weights are released from rest, and start moving due to gravity. The tension in the string (in N) is
Assume weight starts moving with acceleration 'a', while tension in string is T1 ∴ Free body diagram of block having 10 N weight, T1−100=100ag...(i) ∴ Free body diagram of block having 200 N 200−T1=200ag...(ii)
Dividing equation (i) with equation (ii) T1−100200−T1=100200 2T1−200=200−T1 3T1=400
Tension in string, T1=4003=133.33N