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Mathematics, 23.07.2019 17:40 lanamiami

Two piers, a and b, are located s km away from each other along a river. a motor boat, with a speed of vkm/hour in still water, is cruising between the two piers. how much time t (in hours) will the motorboat need to get from pier a to pier b and back, if the speed of the current is 5km/hour? find t if:

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Two piers, a and b, are located s km away from each other along a river. a motor boat, with a speed...
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