(II) A child, who is 45 m from the bank of a river, is

Chapter 3, Problem 49P

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(II) A child, who is 45 m from the bank of a river, is being carried helplessly downstream by the river’s swift current of \(\text {1.0 m/s}\). As the child passes a lifeguard on the river’s bank, the lifeguard starts swimming in a straight line (Fig. 3–46) until she reaches the child at a point downstream. If the lifeguard can swim at a speed of \(\text {2.0 m/s}\) relative to the water, how long does it take her to reach the child? How far downstream does the lifeguard intercept the child?

Equation Transcription:

Text Transcription:

1.0 m/s

2.0 m/s

1.0 m/s

2.0 m/s

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