The speed of movement of a motor boat, sailing relative to the shore downstream, is 3 m / s, and the speed of this boat

univerkov | December 16, 2020 | education

The speed of movement of a motor boat, sailing relative to the shore downstream, is 3 m / s, and the speed of this boat, sailing against the current, is 2 m / s. What is the current velocity?

v current + v boat = 3 (m / s) – boat speed along the current.
v boat – v current = 2 (m / s) – boat speed against the current.
(3-2) / 2 = 0.5 (m / s) – current speed.

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