An indigenous plough has a 20cm wide furrow at the top and 10cm depth. Calculate the volume of soil handled per day of 8 hours if the speed of working is 2.5 km/hr.
To calculate the volume of soil handled per day, we need to find the volume of soil handled per hour and then multiply it by the number of hours worked in a day.
First, let's convert the speed from km/hr to cm/hr:
2.5 km/hr = 2.5 * 1000 m/hr = 2500 m/hr
Since there are 100 cm in a meter, the speed is 2500 * 100 = 250,000 cm/hr
To find the volume of soil handled per hour, we need to find the volume of a rectangular prism, which is calculated by multiplying the length, width, and depth:
Volume of soil per hour = width * length * depth = 20 cm * 250,000 cm/hr * 10 cm = 50,000,000 cm^3/hr
Now we can calculate the volume of soil handled per day by multiplying the volume per hour by the number of hours worked in a day:
Volume per day = 50,000,000 cm^3/hr * 8 hr/day = 400,000,000 cm^3/day
Therefore, the volume of soil handled per day is 400,000,000 cm^3/day.