JEE Main Physics question
Two masses 8 kg and 12 kg are connected at the two ends of a string that goes over a frictionless pulley. Calculate the acceleration of the masses and the tension in the string. (Take g = 10 m/s²) [OJEE 2010]
Answer: (D)
Solution
a = (12−8)(10)/20 = 2 ms⁻². T = 2m₁m₂g/(m₁+m₂) = (2×8×12×10)/20 = 96 N.