Double Trouble in 2 Dimensions (a.k.a., Two Body Problems)
Double Trouble in 2 Dimensions In the Newton's laws unit, the topic of two-body problems was introduced. A pair of problem-solving strategies were discussed and applied to solve three example problems. Such…
Equilibrium and Statics
When all the forces that act upon an object are balanced, then the object is said to be in a state of equilibrium. The forces are considered to be balanced if the rightward…
Determining the Components of a Vector
The task of determining the amount of influence of a single vector in a given direction involves the use of trigonometric functions. The use of these functions to determine the…
Resolution of Forces
Earlier we studied, the method of resolving a vector into its components was thoroughly discussed. During that lesson, it was said that any vector that is directed at an angle to…
Forces in Two Dimensions
Addition of Forces We studied the use of Newton's second law and free-body diagrams to determine the net force and acceleration of objects. In that unit, the forces acting upon…
Solving Projectile Problems
To illustrate the usefulness of the above equations in making predictions about the motion of a projectile, consider the solution to the following problem. ExampleA pool ball leaves a 0.60-meter…
Equations for the Horizontal Motion of a Projectile
The above equations work well for motion in one-dimension, but a projectile is usually moving in two dimensions - both horizontally and vertically. Since these two components of motion are…
Determination of the Peak Height
A non-horizontally launched projectile with an initial vertical velocity of 39.2 m/s will reach its peak in 4 seconds. The process of rising to the peak is a vertical motion…
Determination of the Time of Flight
The time for a projectile to rise vertically to its peak (as well as the time to fall from the peak) is dependent upon vertical motion parameters. The process of…
Determining the Components of a Velocity Vector
Earlier in this unit, the method of vector resolution was discussed. Vector resolution is the method of taking a single vector at an angle and separating it into two perpendicular…
