A man can row a boat at the rate of 4 km/h in still water. If he rows the boat in a river where there is a water current of 3 km/h, find his net velocity and draw a vector diagram for each situation: a. as he rows with the current
b. as he rows against the current
c. as he rows across the stream

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.