Question

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Answer 1

Displacement = position 2 - position 1
\[\Delta x = x_2-x_1\]

We should draw a diagram depicting what is described to us

Initially we're told that the ball rolled up by a distance of 12m. Then we're told that the ball rolled back down and stopped after traveling another distance of 19m in the opposite direction. We can use basic math to use the difference of the distances to find the missing length denoted by `?`.

Answer 2

Where is the question?

Answer 3

Welcome to openstudy!!!

Answer 4

@Vincent-Lyon.Fr Looks like it was edited after I posted my solution