Chapter 2, Problem 47R

To determine

The distance traveled and displacement.

Answer to Problem 47R

Distance travel is $40\text{m}$ and displacement is $0$ .

Explanation of Solution

Given:

Distance is $d=20\text{m}$.

Calculation:

When someone walked $20\text{m}$ to the table and move back $20\text{m}$ to my original position, then total distance that was traveled by the person is $20\text{m+}20\text{m}=40\text{m}$ .

But the resultant displacement is zero because the person moves from initial position to final position again, he moved back to final position so $20\text{m-}20\text{m}=0\text{m}$ , resultant displacement is zero.

Conclusion:

Hence, distance travel is $40\text{m}$ and displacement is $0$ .