Newton's Law question --> Tension Attached in this message is a question from my school pastpaper... I believe the answer is D... This is because I took John and Joan as one system... Therefore their mass is 130kg (together)... F = ma 100 = 130*a a = 0.77 each However, my teacher says its A, she took the question as two separate systems... I don't think thats right... because it says "inextensible rope" therefore it cannot be stretched.. therefore they cant accelerate at different speeds otherwise it will be stretched... is my logic correct?