The water in a river flows uniformly at a constant speed of 2.27 m/s between parallel banks 69.3 m apart. You are to deliver a p
ackage directly across the river, but you can swim only at 1.58 m/s. (a) If you choose to minimize the time you spend in the water, in what direction should you head? ° from the direction of the stream (b) How far downstream will you be carried? m (c) If you choose to minimize the distance downstream that the river carries you, in what direction should you head? ° from the direction of the stream (d) How far downstream will you be carried?
1 answer:
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Answer: Last option
2.27 m/s2
Explanation:
As the runner is running at a constant speed then the only acceleration present in the movement is the centripetal acceleration.
If we call a_c to the centripetal acceleration then, by definition
in this case we know the speed of the runner
The radius "r" will be the distance from the runner to the center of the track
The answer is the last option