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8 Cards in this Set
- Front
- Back
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60D STREET
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60 x D = S x T
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UNITS USED
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Time - minutes Speed - knots Distance - nautical miles |
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To find distance, if speed and time (or duration) are known
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D = (S x T) ÷ 60
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To find time, if distance and speed are known:
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T = (60 x D) ÷ S
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To find speed, if distance and time are known:
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S = (60 x D) ÷ T |
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If a boat's speed is 5 knots, how far will it go in 3½ hours?
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60D = ST
D = (S x T) ÷ 60. D = (5 kts x 210 min) ÷ 60 D = 1050 ÷ 60 D = 17.5 nm |
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If the same boat continues at a speed of 5 knots, how long will it take to cover 6 nm?
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60D = ST
T = (60 x D) ÷ S T = (60 x 6) ÷ 5 T = (360) ÷ 5 T = 72 min or 1h 12m |
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How fast is a boat cruising if it covers 14 nm in 1hr 45m?
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60D = ST |
