B/115 The position vector of a particle is given by r 8ti + 1.2tj - 0.5(tª – 1)k, where t is the time in seconds from the start of the motion and where r is expressed in meters. For the condition when t = 4 s, determine the power P developed by the force F = 40i – 20j - 36k N which acts on the particle. %3D

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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3/115 The position vector of a particle is given by r
8ti + 1.2tj - 0.5( - 1)k, where t is the time in
seconds from the start of the motion and where r
is expressed in meters. For the condition when t =
4 s, determine the power P developed by the force
F = 40i - 20j - 36k N which acts on the particle.
Transcribed Image Text:3/115 The position vector of a particle is given by r 8ti + 1.2tj - 0.5( - 1)k, where t is the time in seconds from the start of the motion and where r is expressed in meters. For the condition when t = 4 s, determine the power P developed by the force F = 40i - 20j - 36k N which acts on the particle.
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