A force F is applied to a body P as shown in the diagram above. If the body moves through a distance, a, which of the following represents the work done?
Resolving the Force F into x and y components;
\(F_x = Fcos\theta\)
\(F_y = Fsin\theta\)
but workdone = Force x distance.
therefore, work done = \(Fcos\theta \times a = FaCos \theta\)
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