Three blocks, light connecting ropes, and a light frictionless pulley comprise a system, as shown in the figure. An external force of magnitude P is applied downward on block A, causing block A to accelerate downward at a constant 2.5 m/s2. The tension in the rope connecting block B and block C is equal to 60 N. (a) What is the magnitude of the force P? (b) What is the mass of block C?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
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Chapter4: The Laws Of Motion
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 Three blocks, light connecting ropes, and a light frictionless pulley comprise a system,

as shown in the figure. An external force of magnitude P is applied downward on block A,

causing block A to accelerate downward at a constant 2.5 m/s2. The tension in the rope

connecting block B and block C is equal to 60 N.

(a) What is the magnitude of the force P?

(b) What is the mass of block C?

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