## The ball is with a slow constant speed

The simulationfrom Motion in 2D, was able to present acceleration and velocity in the form ofarrows. The green arrows represented velocity and the blue arrows representedacceleration. When the red ball was dragged the velocity increases. When thedragging of the ball is halted, deceleration occurs.

The deceleration vector isalways the opposite of acceleration vector. If the red ballis dragged in a circular path, the velocity is changing at every point becauseof the change in direction. This causes the blue arrow to remain at a constant,while the green arrow is changing. The ball would be in centripetal accelerationdue to its changing velocity. On the other hand, if the ball is with a slow constantspeed very little acceleration occurs.

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If the ball is rapidly moved back andforth the velocity of the ball changes and causes the acceleration to increaserapidly too. The vector during this action flashed and stretched across thescreen.Simple harmonic motion and uniform circularmotion were also observed.

Uniformed circular motion of an object in a circleat a constant speed. Since the ball is moving during the action in a constantcircle, it means that the direction is always changing. When the direction isalways changing, it simply means that the velocity is not at a constant. Simpleharmonic is a type of periodic motion where the restoring forces are directlyproportional to the displacement and acts in the opposite direction of displacement.The red ballcould be compared to a field goal kick from a football player. This simulation wasable to give visual examples of how velocity and acceleration play a role in thefootball realm.

Kickers on football teams deal with all types of environmentalfactors during their play, and one of the most relevant topics are cross wind. Crosswinds can cause players to subconsciously take acceleration and velocity intoconsideration. If Jake accelerates theball initially in a half circular path towards the field goal at due North at80 m/s and the cross winds are blowing east to west 20 m/s, the resultantvelocity will have to be calculated. When the ball hits the ground its path ishalted, which caused deceleration and the play is over. If this quickmath does not occur than their accuracy of the kick will decreasesubstantially. It is possible for      the player to measure the amount ofacceleration and velocity change that is needed to make a field goal if theymiles per hour the wind is blowing.

If the resultant velocity of the ball canbe obtained, he can figure out what degree mark the ball will make it throughthe field goal. This will increase accuracy, as long as he can keep theacceleration of the ball at a constant speed that he used in his calculations.

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