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ALEX10 ALEX10
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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 pull P is closest to



50 N.

290 N.

200 N.

690 N.

490 N.
Textbook 

Essential University Physics


Edition: 3rd
Author:
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hardyusufhardyusuf
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4 months ago
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690 N.

P = (m1+m2+m3) (g + a) = (5+10+15+20) * (9.8+4)
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A month ago Edited: A month ago, 北科大-韋大仲
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