Question

On Sunday, a strong gale blows near Beth’s house. The best estimate for the wind speed is miles/hour. Note: One knot is about the same as 1.15 miles/hour.

Select the correct answer from each drop-down menu.
Category
Wind Speed (knots)
Description
0
less than 1
calm
1
1–3
light air
2
4–6
light breeze
3
7–10
gentle breeze
4
11–16
moderate breeze
5
17–21
fresh breeze
6
22–27
strong breeze
7
28–33
near gale
8
34–40
gale
9
41–47
strong gale
10
48–55
storm
11
56–63
violent storm
12
64+
hurricane

Answer 1

The answer is: The best estimate for the wind speed is 47.15 - 54.05 miles/hour.

The knot is a unit of speed equal to one nautical mile per hour, approximately 1.15 mph.

The ISO standard symbol for the knot is kn.

v(wind) = 41-47 kn; speed of strong gale.

v(wind) = 41 · 1.15 mph.

v(wind) = 47.15 mph.

v(wind) = 47 · 1.15 mph.

v(wind) = 54.05 mph.