a speedboat moving at 30.0 m/s approaches a no-wake buoy marker 100 m ahead. the pilot slows the boat with a constant acceleration of -3.50 m/s^2 by reducing the throttle. (a) how long does it take the boat to reach the buoy? (b) what is the velocity of the boat when it reaches the buoy?
(a) how long does it take the boat to reach the buoy?
Let D be the distance, a the acceleration, V the initial velocity and T the time. Then&