Figure 10.
Once the components of Rx and Ry are determined, the totality of R can be determined along with the angle theta. What you need to know is that the adding and subracting of vectors is done in the same way. You can use the equations you already know to get each angle and each component of the graphed out problem so you can solve for the angle and magnitude of the resultant vector R.
PROJECTILE MOTION Projectile motion can be termed the movement of an object that is thrown or somehow projected into the air. The object thrown is known as the projectile and its path is referred to as the trajectory. After being thrown, its motion is subject to the laws of gravity. We’ve already covered the motion of falling objects. In our discussion, as in previous ones, air resistance is considered negligible. You need also to remember that you can consider the movements in perpendicular directions (as in the x and y axis) separately. Finally, you need to know that all forces, except gravity are also negligible. Upwards direction will be positive and the force of gravity will be negative. Figure 11 describes a vector at a certain point (x, y) called S, because of a projectile’s trajectory:
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