Physics A fishing boat approaches a caution buoy 100 m ahead at a velocity of 31:5 m/s. The pilot reduces the throttle, slowing the boat with a constant acceleration of -3.40 m/s? (0) How long (in s) does it take the boat to reach the buoy? (b) What is the velocity (in mw/s) of the boat when it reaches the buoy? (Indicate the direction with the sign of your answer.)