Question

When a 10,000-m runner competing on a 400-m track crosses the finish line, what is the runner’s net displacement? Can this displacement be zero? Explain.

Answer 1

Answer:

So even for 10,000 m runner here, displacement Is zero. And so, yes, the displacement can be zero

Answer 2

Yes, the displacement can be zero.

But how?

• As per the question, the 10 km runner a is competing on a 400 metre track. He starts from the starting line and crosses the finishing line in a specified time period.

Now, let's define DISPLACEMENT.

• Displacement is defined as a vector quantity representing the shortest line in between the starting and the stopping point of an object.

In this case, the runner starts and finishes on the same line, that means : the starting position and the finishing position are the same.

So, as per the definition of displacement, the displacement of the runner is zero.

$\star$ Hope It Helps.