A boat with a still water velocity of 20.0km/hr heads North across a river that flows directly East at 12.0km/hr. ( I am in need of help with d & e). a) What will be the resultant velocity of the boat if it does not fight the current ? (23.3 km/hr 31.0o E of N) b) If the river is 700.m wide, how long will it take the boat to reach the opposite side if it does not fight the current ? (.035hr) c) How far downstream, relative to the bank, will the boat be carried if it does not fight the current ? (.420km or 420.m) d) What must be the heading of the boat if it is to keep a path directly North across the stream ? Draw a vector diagram. e) How long will it take the boat to cross the stream if it keeps its heading during the entire trip ?
A boat with a still water velocity of 20.0km/hr heads North across a river that flows directly East at 12.0km/hr. ( I am in need of help with d & e).
a) What will be the resultant velocity of the boat if it does not fight the current ? (23.3 km/hr 31.0o E of N)
b) If the river is 700.m wide, how long will it take the boat to reach the opposite side if it does not fight the current ? (.035hr)
c) How far downstream, relative to the bank, will the boat be carried if it does not fight the current ? (.420km or 420.m)
d) What must be the heading of the boat if it is to keep a path directly North across the stream ? Draw a vector diagram.
e) How long will it take the boat to cross the stream if it keeps its heading during the entire trip ?
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