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Determine the moment of a force about a point by using $M= F d_\perp$ or $M = F_\perp d$.

Find the centroid of a shape made from a rectangle, triangle, and circle.

Find the tensions in two ropes supporting a weight.

Find the reactions of a rigid body (a truss) at a pin and roller.  All loads are either horizontal or vertical.

Find the reactions of a rigid body (a triangular plate) at a pin and roller, using the three-force body principle.

Find the reactions of a rigid body (a triangular plate) at a pin and roller.  The load is at an angle.

Find the reactions of a rigid body (a triangular plate) at a pin and roller, using the three-force body principle.

Given three vectors, arrange them in a tip to tail arrangement using geogebra, then estimate the magnitude and direction of their resultant.

Given three vectors, arrange them in a tip to tail arrangement using geogebra, then estimate the magnitude and direction of their resultant.

Given three vectors, arrange them in a tip to tail arrangement using geogebra, then estimate the magnitude and direction of their resultant.