Question

which of the following is one dimensional motion
1) landing of an aircraft
2) earth revolving around the sun
3) motion of wheels of moving train
4) train running on a straight track ​

Answer 1

Answer:

option 4 beacuase it is on x-axis only

Answer 2

Answer:

4) train running on a straight track

Explanation:

Let us check the question option wise,

1) landing of an aircraft:

In this case the aircraft is moving towards down and then it changes direction and continues to move in a straight line motion on the runway. So it's a two dimensional motion.

2) earth revolving around the sun:

In this case as the earth is moving around the sun in circular motion, we know that in a circular motion the direction of the object changes at every point. Thus, the movement of earth around the sun is not one dimensional its multidimensional motion.

3) motion of wheels of moving train:

In this case as the wheels are also moving in a circular motion its direction is changing at every point so it is not a one dimensional motion.

4) train running on a straight track:

As the train is running on the straight track it is the one dimensional motion.

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