Answer: A machine carries a 4.0 kg package from an initial
Chapter , Problem 47(choose chapter or problem)
A machine carries a 4.0 kg package from an initial position of d; = (0.50 m)i + (0.75 m)] + (0.20 m)k at t = 0 to a final position of df = (7.50 m)i + (12.0 m)] + (7.20 m)k at t = 12 s. The constant force applied by the machine on the package is F = (2.00 N)i + (4.00 N)] + (6.00 N)k. For that displacement, find (a) the work done on the package by the machine's force and (b) the average power of the machine's force on the package.
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