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pts A lookout station located at
S
on a straight shoreline receives a distress call from a ship. It dispatches two search helicopter teams
A
and
B
. Team
A
travels at a speed of
80k(m)/(h)
perpendicular to the shoreline. Team
B
travels
90k(m)/(h)
at an angle
/_(A)SB=30\deg
. Half an hour later team
B
spots the ship below it. (a) What is the distance from the ship to the shore? (b) What is the distance from team
A
to the ship? (c) The station
S
has to set up a temporary help station
T
on the shore point nearest to the distress ship, how far would
T
be from
S
?