Question: In a belt transmission dynamometer, the distance between the centre of driving pulley and dead weights is (1 mathrm{~m}). Find the value of dead weights

In a belt transmission dynamometer, the distance between the centre of driving pulley and dead weights is $1 \mathrm{~m}$. Find the value of dead weights required to keep the lever in horizontal position if power transmitted is $7.5 \mathrm{~kW}$ and the diameter of each of the driving as well as the intermediate pulleys is equal to $0.4 \mathrm{~m}$. The driving pulley runs at $400 \mathrm{rpm}$.

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