The own speed of the ship is 21.6 km / h. The current speed is 4.9 km / h. Find the speed of the boat upstream and upstream.

Speed, time and distance are physical quantities that depend on each other.

According to the condition of the task, we determine the speed of the motor ship downstream and against it, if it is known:

V proper = 21.6 km / h, and V current = 4.9 km / h:

V flow = V sob + V flow = 21.6 + 4.9 = 26.5 km / h.

V prot. flow = V sob – V flow = 21.6 – 4.9 = 16.7 km / h.



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