Maths
posted by Realone .
An aeroplane leaves a point on latitude 54°S at 10 a.m.it flies due south at a steady speed at 800km/h. (a)what is the latitude at midday(b) At what time does it pass over the south pole

1 degree of latitude is about 111 km. So,
800 km/hr ≈ 800/111 = 7.2°/hr
so, ...
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