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April 23, 2014

Homework Help: Physics

Posted by Ben on Thursday, July 22, 2010 at 12:24pm.

A machine carries a 4.5 kg package from an initial position of di = (0.50 m) + (0.75 m) + (0.20 m) at t = 0 to a final position of df = (7.60 m) + (12.0 m) + (7.30 m) at t = 11 s. The constant force applied by the machine on the package is F = (2.00 N) + (4.00 N) + (6.00 N) .
(a) For that displacement, find the work done on the package by the machine's force.
J

(b) Also, find the power of the machine's force on the package.
W

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