To the captain of a ship A travelling with velocity VA = (39 – 4) km/h, a second ship B appears to have a velocity (5 i +12 ) km/h. What is
the true velocity of the ship B?
21+ 16 km/h
А
B
13 +8 km/h
С
-2 -16 km/h
D
D
8(i+j) km/h
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