What is your velocity when walking on a moving train in the opposite direction?

In summary, when you are on a train traveling east at 14.0 m/s with respect to the ground and walk west toward the back of the train at a speed of 1.4 m/s with respect to the train, your velocity with respect to the ground is 12.6 m/s east. The answer can be given as either positive or negative, depending on which direction is considered positive.
  • #1
aruji73
19
0
You are on a train traveling east at speed of 14.0 m/s with respect to the ground.

if you walk west toward the back of the train, with a speed of 1.4 m/s with respect to the train, what is your velocity with respect to the ground?

I got the answer as 12.6 m/s east but is my answer going to be positive or negative
 
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  • #2
aruji73 said:
I got the answer as 12.6 m/s east but is my answer going to be positive or negative
12.6 m/s east is correct. If you said negative 12.6 m/s east, that would mean it was going to the west, which is not correct.

You're giving a magnitude (which is always positive) and a direction.
 
  • #3
That depends on which direction is positive and which negative.
 

1. What is relative motion in a train ride?

Relative motion in a train ride refers to the perception of movement between the train and objects outside the train. This can be observed when looking out the window and seeing objects passing by at different speeds and directions.

2. How does relative motion affect a train ride?

Relative motion can affect a train ride by causing passengers to feel a sense of motion sickness or disorientation. It can also impact the perceived speed and direction of the train, making it seem faster or slower depending on the objects outside.

3. What factors contribute to relative motion in a train ride?

There are several factors that contribute to relative motion in a train ride, including the speed and direction of the train, the speed and direction of objects outside the train, and the distance between the train and these objects.

4. Can relative motion be minimized in a train ride?

Relative motion cannot be completely eliminated in a train ride, but it can be minimized by reducing the speed of the train, avoiding sharp turns, and keeping a consistent distance from objects outside the train.

5. How does the concept of relative motion apply to other forms of transportation?

Relative motion can be observed in other forms of transportation, such as cars, planes, and boats. It is a fundamental principle of physics and can also be seen in everyday activities, such as walking or biking.

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