Question $2$ of $4$

no Three students separately pull or push one, two, or three boxes on a smooth horizontal surface, as cases, the acceleration is the same. Assume that all ropes as massless.

Case $1$

Case $2$

$$ vec$(a)$

$$ vec$(a)$

In which case is the strength of the pull or push the greatest?

Case $1$

Greatest for Case $1$ and Case $2$ only

Greatest for Case $2$ and Case $3$ only

Same for all

Case $3$

Case $2$

Greatest for Case $1$ and Case $3$ only

Explain your reasoning;

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