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the velocity of a ship in still water is 20 km/h . what is the velocity of a motor boat approaching the ship at right angles to its course if it appears to people on board ship heads towards the ship at 60 degree

  • the velocity of a ship in still water is 20 km/h . what is the velocity of a motor boat approaching the ship at right angles to its course if it appears to people on board ship heads towards the ship at 60 degree
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Grade:12th pass

1 Answers

Shaswata Biswas
132 Points
7 years ago
The angle of the resultant with the ship comes to be 60`. If Vs is the velocity of the ship and Vb is the velocity of the boat, the tan60` = Vbsin90`÷(Vs-Vbcos90`). Since the angle between Vb & Vs is 90. On solving Vb = 20root3 = 34.64 m/s

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