Amotorboat, which has a speed of 5.0 meters
per second in still water, is headed east as it
crosses a river flowing south at 3.3 meters per
second. what is the magnitude of the boat’s
resultant velocity with respect to the starting
point?
(1) 3.3 m/s (3) 6.0 m/s
(2) 5.0 m/s (4) 8.3 m/s

Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.