Answer:
2 feet
Step-by-step explanation:
Displacement at 0 seconds is 0 feet.
Displacement at 2 seconds is 2 feet because it took them 2 seconds to walk 2 feet.
Remember that the formula for the surface area of a sphere is

. Substitute the given surface area to solve:

. Divide by 4 on both sides:

. Divide by pi on both sides:

. Square root on both sides to find the radius:
Yes ,it is a contact force .Example when a ball touches de floor friction makes it go slow and makes it go up
Song= sngo, sogn, gnso, gosn, gnos, snog, 6 ways ?
I believe the answer is Chord AB