The tractor pulls the wide-grip mower at an average speed of 6.28 km / h. What area of grass can be harvested in 8 hours

| February 19, 2021 | education

The tractor pulls the wide-grip mower at an average speed of 6.28 km / h. What area of grass can be harvested in 8 hours of work if the tractor driver has lunch for 30 minutes and the mower has a width of 14.5 m?

To find the area of grasses harvested by a wide-cut mower, we will use the formula: S = L * B = V * Δt * B = V * (t – to) * B.

Values of variables: V – average speed of wide-cut mowing machine (V = 6.28 km / h); t – total operating time (t = 8 h); tо – the duration of the tractor driver’s lunch (tо = 30 minutes = 0.5 hours); B – the width of the mowing machine (B = 14.5 m = 14.5 * 10-3 km).

Let’s perform the calculation: S = V * (t – tо) * B = 6.28 * (8 – 0.5) * 14.5 * 10-3 = 0.68295 km2 = 68.295 ha.

Answer: You can remove an area equal to 68.295 hectares.



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