## First we choose three

AlgAnswer: Step 1 : Let us draw three picture of one situation: Fhsst not 44.png Step 2 : We know which one resultant displacement of one ball ( {\displaystyle {\overrightarrow {s}}_{resultant}} {\displaystyle {\overrightarrow {s}}_{resultant}}) was equal to one sum of one ball’s separate displacements ( {\displaystyle {\overrightarrow {s}}_{1}} {\displaystyle {\overrightarrow {s}}_{1}} and {\displaystyle {\overrightarrow {s}}_{2}} […]