Consider $($Figure $1).$ A $\backslash (75-\backslash$mathrm$\{$kg$\}\backslash )$ man and $\backslash (40-\backslash$mathrm$\{$kg$\}\backslash )$ girl sit on the seesaw, which has negligible mass. Assume $\backslash ($ L$=2\mathrm{.}0\backslash$mathrm$\{$~m$\}\backslash ).$ The centers of mass of the man and girl are at $\backslash ($ G$\_\{$m$\}\backslash )$ and $\backslash ($ G$\_\{$g$\}\backslash ),$ resphectively. At the instant the man lifts his feet from the ground, each sits upright, i$.$e$.,$ they do not rotate.

Figure

Part A

Determine the acceleration of the man at this instant.

Express your answer to three significant figures and include the appropriate units. Assume the positive direction is upward.

Incorrect; Try Again; $2$ attempts remaining

Part B

Determine the acceleration of the girl at this instant.

Express your answer to three significant figures and include the appropriate units. Assume the positive direction is upward.

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a$\_\{$g$\}=$

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$\backslash$mathrm$\{$s$\}^\{2\}$

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