2)

A car traveling at 60 feet/sec decelerates at a constant rate so that it comes to a complete stop after 30 seconds. How far does the car travel in that time? Select one: {:3 2400 ft C3 1800 ft {:3 1700 ft C3 900 ft Which of the following statements are always true? A) If f(t) is increasing, then the left-hand sum gives an overestimate of the integral from a to b of f(t)dt. B) If f(t) is concave up, then the left-hand sum gives an overestimate of the integral from a to b of f(t)dt. Select one: {I} a. Only B) (I) [3. Both A] and B] (I) c. Only A] {I} cl. Neither A] orB)