Answer:
Step-by-step explanation:
Given
Width of river=200 m
Speed of river
=2 m/s
Speed of Boat relative to river
=8 m/s
Boat leaves the bank
west of north


Therefore velocity of boat w.r.t ground


Magnitude of boat speed

For direction

w.r.t to west
to cross the river its north component will help so
time taken
