A tugboat is travelling from Asaba to Onitsha across the River Niger with a resultant...

JAMB 1980

A tugboat is travelling from Asaba to Onitsha across the River Niger with a resultant velocity of 20 knots. If the river flows at 12 knots, the direction of motion of the boat relative to the direction of water flow is?

A. 36.87^o
B. 53.13^o
C. 90^o
D. 136^o
E. 143.13^o

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Correct Answer: Option B

Explanation

\(\theta\) = cos-1\(\frac{(12)}{20}\)

\(\theta\) = 53.13°

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A tugboat is travelling from Asaba to Onitsha across the River Niger with a resultant...

Correct Answer: Option B

Explanation

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