A child in danger of drowning in a river is being carried down-stream by a current that flows uniformly with a speed of 2.20 m/s
. The child is 500 m from the shore and 1100 m upstream of the boat dock from which the rescue team sets out. If their boat speed is 7.30 m/s with respect to the water, at what angle from the shore must the boat travel in order to reach the child?
The equation formula: P V = n R T 1,245 * 2 l = n R * 300 K n R = 1,245 * 2 : 300 = 8.3 P * 2.5 l = n R * 400 K P * 2.5 = 8.3 * 400 P = 3,320 : 2.5 = 1328 J Answer: A ) 1,328 joules.