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April 20, 2014

Homework Help: physics

Posted by anusha on Sunday, October 28, 2012 at 11:16am.

A child in danger of drowning in a river is being carried downstream by a current that has a speed of 2.10 km/h. The child is 0.600 km from shore and 0.800 km upstream of a boat landing when a rescue boat sets out.

(a) If the boat proceeds at its maximum speed of 19.0 km/h relative to the water, what heading relative to the current should the pilot take?
-- relative to the direction of the current

(b) What angle does the boat velocity make with the current?
--- relative to the direction of the current

(c) How long does it take the boat to reach the child?
----s

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