Multiple-Object Systems Without Friction: a Series of Weights Connected by Very

Multiple Choice

Multiple-object systems without friction: A series of weights connected by very light cords are given an upward acceleration of 4.00 m/s² by a pull P, as shown in the figure. A, B, and C are the tensions in the connecting cords. The SMALLEST of the three tensions, A, B, and C, is closest to

A) 80.0 N.
B) 196 N.
C) 276 N.
D) 483 N.
E) 621 N.