Breaking up the velocities intocomponents is particularly useful when the compon

Question

Breaking up the velocities intocomponents is particularly useful when the components do not affecteach other. Eventually, you will learn about situations in whichthe components of velocity do affect one another, but for now youwill only be looking at problems where they do not. So, if there isacceleration in the x direction but not in the ydirection, then the x component of the velocity willchange, but the y component of the velocity willnot.

Look at this applet. http://session.masteringphysics.com/probhtml/applets/setup3-1-3.html

The motion diagram for a projectile is displayed, as are the motiondiagrams for each component. The x component motiondiagram is what you would get if you shined a spotlight down on theparticle as it moved and recorded the motion of its shadow.Similarly, if you shined a spotlight to the left and recorded theparticle's shadow, you would get the motion diagram for itsy component. How would you describe the two motiondiagrams for the components?

Explanation / Answer

The vertical component exhibits motion with constant nonzero acceleration, whereas the horizontal component exhibits constant-velocity motion.

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