A person going for a morning jog on the deck of a cruise ship isrunning toward the bow (front) of the shipat 1.5 {\rm m/s} while the ship ismoving ahead at 8.5 {\rm m/s}.
a) What is the speed of the jogger relative to the water?
b) Later,the jogger is moving toward the stern (rear) of the ship. What isthe jogger's speed relative to the water now?