A student is standing on a bridge which is 11 feet above the water, and a small boat passes underneath, travelling perpendicular to the bridge at a rate of 16 feet per second. At what rate is the distance between the student's feet and the rear of the boat (at the water level) changing, 2 seconds after the boat passes under the bridge? Answer with an exact value and also rounded to 2 decimal places.

During the apollo moon missions, astronauts were concerned about the effects of newton's third law of motion when: o a. they ejected waste water, because they were concerned that it would push them off course. o b. they reentered earth's atmosphere, because they were carrying heavy moon rocks. o c. they took off from earth, because a large force was required to generate large acceleration. o d. they detected incoming space debris, because the inertia of the debris could damage their ship.