In Fig. 3-27, a heavy piece of machinery is raised by sliding it a distance d = 12.5 m along a plank oriented at angle 20.0°
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In Fig. 3-27, a heavy piece of machinery is raised by sliding it a distance d = 12.5 m along a plank oriented at angle 20.0° to the horizontal. How far is it moved
(a) vertically
(b) horizontally?
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