posted by joshua on .
A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s.
a. What is the boat's resultant speed with respect to the river bank?
b. How long does ti take the boat to cross the river?
c. How far downstream or upstream is the bot when it reaches the other side?