Shown is a mass mA$=0\mathrm{.}30$ kg on an incline attached by a string over a pulley to mass mB$.$ The angle theta $=25$ degrees, and the coefficient of friction are us $=0\mathrm{.}0938$ and uk $=0\mathrm{.}0512.($A$)$ IF mB $=0\mathrm{.}150$ kg$,$ what will be the acceleration of the system? $($B$)$ If mB $=0\mathrm{.}175$kg$,$ what will be the acceleration of the system?

Problem $4(20$ pts $).$ Shown is a mass m$\_($A$)=0\mathrm{.}30$kg on an incline attached by a string over

a pulley to mass m$\_($B$).$ The angle $\backslash$theta $=25\backslash$deg $,$ and the coefficients of friction are $\backslash$mu $\_($s$)=0\mathrm{.}0938$ and

$\backslash$mu $\_($k$)=0\mathrm{.}0512.$

$($a$)$ If m$\_($B$)=0\mathrm{.}150$kg$,$ what will be the acceleration of the system?

$($b$)$ If m$\_($B$)=0\mathrm{.}175$kg$,$ what will be the acceleration of the system?

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