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Two dimensional particle equilibrium problem.  Advice shows how to use how to use slope triangles to find sines and cosines, rather than finding the angle and using that.

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Classic machine problem.  Find the mechanical advantage of a pair of pliers and the force on the hinge pin.

Solve a trigonometric equation involving a conversion to tangent by division by cosine.

Primarily concerned with identifying when a number is in the thousands, million, billions or trillions.

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Una partícula se proyecta hacia arriba de un plano rugoso a una velocidad dada. Dado el ángulo de la pendiente y el coeficiente de fricción, encuentre la distancia que recorre la partícula antes de llegar al reposo instantáneo.