Question
In Fig, a constant external force P = 140 N is applied to a 20-kg box, which is on a rough horizontal surface. The force
In Fig, a constant external force P = 140 N is applied to a 20-kg box, which is on a rough horizontal surface. The force pushes the box a distance of 8.0 m, in a time interval of 8.0 s, and the speed changes from v1 = 0.4 m/s to v2 = 2.4 m/s. The work done by the external force P is closest to:
30 20 kg -8.0 m-
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Given that External Force P 140 N V 1 04 ms V 2 24 ms Weight of Box 20 kg Distance S 80 m Time int...
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Fundamentals of Thermodynamics
Authors: Richard E. Sonntag, Claus Borgnakke, Gordon J. Van Wylen
6th edition
471152323, 978-0471152323
