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Two disks of mass 1 kg each are connected with a rope. They are sliding on a frictionless table. The left-hand disk is pulled to the left with a force of 3N, the right-hand disk is pulled to the right with a force of 6N. The rope is stretched taut by the opposite forces. You can neglect the mass of the rope. Don't enter units or decimal points - just an integer:
A. What is the net force on the combined object consisting of the two disks (connected by the rope)? Specify its direction and magnitude.
B. What is the acceleration of the combined object? Hint: the mass of the combined object is 2kg.
C. The acceleration of each individual disk must be the same as the value in part B, because both disks are tied together by a rope that cannot stretch. From this, calculate the net force that must be acting on each disk separately.
D. Deduce the tension F in the rope by relating F to the net force on the disk on the left.
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