Centroid is a weighted average of geometric properties like area or volume. Centroids represent coordinates of the "middle" of a shape. Three-dimensional centroids use volume as weighting factor. Two-dimensional centroids use area as weighting factor
Published in 2016 for 200-level engineering students at FUTO. Authored by Russell Hibbeler for ENG213 course. Available for free online download
Earth's gravitational acceleration is 9.81 m/s² on its surface. The gravitational field strength on Earth is 10 N/kg. The value of g varies with altitude, higher at poles and lower at equator
Equilateral triangles have equal sides and angles. Isosceles triangles have two equal sides and opposite angles
Procedure aims to determine lightship weight and center of gravity accuracy. Test should be conducted near completion with minimal equipment. Total missing weights should not exceed 2%, surplus weights 4%. Ship must be cleared of debris and bilge water
Free fall occurs when only gravitational force acts on an object. Terminal velocity occurs when gravitational and air resistance forces balance. Free fall acceleration is constant at 9.80665 m/s² on Earth