An open belt drive system transmits $5 \mathrm{~kW}$ power using a flat belt of width and thickness as $80 \mathrm{~mm}$ and $5 \mathrm{~mm}$, respectively. The driving shaft speed is $1500 \mathrm{rpm}$ and the driven shaft speed is $500 \mathrm{rpm}$. The coefficient of friction between the belt and pulley is $0.20,$ and the wrap angle of the belt is $168^{\circ} .$ If diameter of the smaller pulley is $200 \mathrm{~mm}$, maximum stress induced in the belt will be ____________$\quad$ MPa.

An open belt drive system transmits $5 \mathrm{~kW}$ power using a flat belt of width and thickness as $80 \mathrm{~mm}$ and $5 \mathrm{~mm}$, respectively. The driving shaft speed is $1500 \mathrm{rpm}$ and the driven shaft speed is $500 \mathrm{rpm}$. The coefficient of friction between the belt and pulley is $0.20,$ and the wrap angle of the belt is $168^{\circ} .$ If diameter of the smaller pulley is $200 \mathrm{~mm}$, maximum stress induced in the belt will be ____________$\quad$ MPa.

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