42. A rope with mass m, is attached QC to a block with mass m as in Fig- Sure P5.42. The block rests on a т, ть frictionless, horizontal surface. The rope does not stretch. The free end of the rope is pulled to the right with a horizontal force F. (a) Draw force dia- grams for the rope and the block, noting that the tension in the rope is not uniform. (b) Find the acceleration of the system in terms of m, m, and F. (c) Find the magnitude of the force the rope exerts on the block. (d) What happens to the force on the block as the rope's mass approaches zero? What can you state about the tension in a light cord joining a pair of moving objects? Figure P5.42

42. A rope with mass m, is attached QC to a block with mass m as in Fig- Sure P5.42. The block rests on a т, ть frictionless, horizontal surface. The rope does not stretch. The free end of the rope is pulled to the right with a horizontal force F. (a) Draw force dia- grams for the rope and the block, noting that the tension in the rope is not uniform. (b) Find the acceleration of the system in terms of m, m, and F. (c) Find the magnitude of the force the rope exerts on the block. (d) What happens to the force on the block as the rope's mass approaches zero? What can you state about the tension in a light cord joining a pair of moving objects? Figure P5.42

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter5: Newton's Laws Of Motion

Section: Chapter Questions

Problem 78PQ: Two children, Raffi and John, sitting on sleds tied together with a massless rope, are being dragged...

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