Choose all the descriptions that match the motion shown in this graph. Assume th

Question

Choose all the descriptions that match the motion shown in this graph. Assume that the coordinate system is positive to the right.

Choose all the descriptions that match the motion shown in this graph. Assume that the coordinate system is positive to the right.

Choose all the descriptions that match the motion shown in this graph. Assume that the coordinate system is positive to the right.

Choose all the descriptions that match the motion shown in this graph. Assume that the coordinate system is positive to the right.

Explanation / Answer

1) E We can see that x starts out positive and becomes negative and then positive again. This means that at first it must be moving toward the negative (left). Once it makes the turn it is moving toward the positive (right). Because it moves in both directions, we eliminate all of the other answers. 2) E Because the velocity remains constant, we know that it is neither speeding up nor slowing down so we can eliminate all of those answers. Because the velocity is negative we know that it is moving to the in a negative (left) direction. 3) F The velocity begins at 0 and then becomes more and more negative. This means that it is speeding up but traveling in a negative (left) direction. 4) A Its x-coordinate does not change. Therefore, it is not moving.

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